speaking! (#5925 )

Fix non-ASCII characters in headers being rejected (#5377 ) (#5699 )
Hotfix-cant-run-tools-when-no-credits (#5955 )
2026-09-03 05:10:16 +03:00 · 2026-03-19 14:11:36 +00:00 · 2026-03-17 19:23:18 +00:00 · 2026-03-17 13:01:08 +00:00 · 2026-03-16 22:22:16 +00:00 · 2026-03-16 22:05:02 +00:00
1082 changed files with 117070 additions and 37731 deletions
@@ -1,75 +1,52 @@
-# Node modules and build artifacts
-node_modules
-frontend/node_modules
-frontend/dist
-frontend/build
-frontend/.vite
-frontend/.tauri
-frontend/src-tauri/target
-
-# Gradle build artifacts
-.gradle
-build
-bin
-target
-out
-
-# Git
-.git
+# Version control
+.git/
 .gitignore

-# IDE
-.vscode
-.idea
+# Build outputs
+build/
+*/build/
+**/build/
+out/
+target/
+
+# Gradle caches (local, not what's in the container)
+.gradle/
+**/.gradle/
+
+# Node / frontend
+node_modules/
+**/node_modules/
+.npm/
+.yarn/
+
+# IDE and editor
+.idea/
+.vscode/
 *.iml
-*.iws
 *.ipr
+*.iws

-# Logs
+# Logs and temp files
 *.log
-logs
-
-# Environment files
-.env
-.env.*
-!.env.example
-
-# OS files
+*.tmp
+*.pid
 .DS_Store
 Thumbs.db

-# Java compiled files
-*.class
-*.jar
-*.war
-*.ear
-
-# Test reports
-test-results
-coverage
-
-# Docker
-docker-compose.override.yml
+# Docker itself
+Dockerfile*
 .dockerignore

-# Temporary files
-tmp
-temp
-*.tmp
-*.swp
-*~
-
-# Runtime database and config files (locked by running app)
-app/core/configs/**
-stirling/**
-stirling-pdf-DB*.mv.db
-stirling-pdf-DB*.trace.db
-
-# Documentation
-*.md
-!README.md
-docs
-
-# CI/CD
-.github
+# CI / CD configs (not needed in build context)
+.github/
+.circleci/
 .gitlab-ci.yml
+
+# Test reports
+**/test-results/
+**/jacoco/
+
+# Local env
+.env
+.env.*
+!.env.example
@@ -14,7 +14,7 @@ indent_size = 4
 max_line_length = 100

 [*.py]
-indent_size = 2
+indent_size = 4

 [*.gradle]
 indent_size = 4
@@ -68,3 +68,8 @@ updates:
    schedule:
      interval: "weekly"
    rebase-strategy: "auto"
+
+  - package-ecosystem: cargo
+    directory: /frontend/src-tauri/provisioner
+    schedule:
+      interval: daily
@@ -9,7 +9,7 @@
 # CVE-2025-6176 mitigation: pin brotli to a specific commit
 brotli @ git+https://github.com/google/brotli.git@028fb5a23661f123017c060daa546b55cf4bde29
    # via
-    #   -r .github/scripts/requirements_dev.in
+    #   -r requirements_dev.in
    #   fonttools
 cffi==2.0.0 \
    --hash=sha256:00bdf7acc5f795150faa6957054fbbca2439db2f775ce831222b66f192f03beb \
@@ -256,105 +256,105 @@ opencv-python-headless==4.13.0.90 \
    --hash=sha256:e13790342591557050157713af17a7435ac1b50c65282715093c9297fa045d8f \
    --hash=sha256:eba38bc255d0b7d1969c5bcc90a060ca2b61a3403b613872c750bfa5dfe9e03b \
    --hash=sha256:f46b17ea0aa7e4124ca6ad71143f89233ae9557f61d2326bcdb34329a1ddf9bd
-    # via -r .github/scripts/requirements_dev.in
+    # via -r requirements_dev.in
 pdf2image==1.17.0 \
    --hash=sha256:eaa959bc116b420dd7ec415fcae49b98100dda3dd18cd2fdfa86d09f112f6d57 \
    --hash=sha256:ecdd58d7afb810dffe21ef2b1bbc057ef434dabbac6c33778a38a3f7744a27e2
-    # via -r .github/scripts/requirements_dev.in
-pillow==12.1.0 \
-    --hash=sha256:00162e9ca6d22b7c3ee8e61faa3c3253cd19b6a37f126cad04f2f88b306f557d \
-    --hash=sha256:079af2fb0c599c2ec144ba2c02766d1b55498e373b3ac64687e43849fbbef5bc \
-    --hash=sha256:0b022eaaf709541b391ee069f0022ee5b36c709df71986e3f7be312e46f42c84 \
-    --hash=sha256:0c27407a2d1b96774cbc4a7594129cc027339fd800cd081e44497722ea1179de \
-    --hash=sha256:0ddedfaa8b5f0b4ffbc2fa87b556dc59f6bb4ecb14a53b33f9189713ae8053c0 \
-    --hash=sha256:0deedf2ea233722476b3a81e8cdfbad786f7adbed5d848469fa59fe52396e4ef \
-    --hash=sha256:0ed07dca4a8464bada6139ab38f5382f83e5f111698caf3191cb8dbf27d908b4 \
-    --hash=sha256:0fde7ec5538ab5095cc02df38ee99b0443ff0e1c847a045554cf5f9af1f4aa82 \
-    --hash=sha256:15c794d74303828eaa957ff8070846d0efe8c630901a1c753fdc63850e19ecd9 \
-    --hash=sha256:1a949604f73eb07a8adab38c4fe50791f9919344398bdc8ac6b307f755fc7030 \
-    --hash=sha256:1f345e7bc9d7f368887c712aa5054558bad44d2a301ddf9248599f4161abc7c0 \
-    --hash=sha256:1fcc52d86ce7a34fd17cb04e87cfdb164648a3662a6f20565910a99653d66c18 \
-    --hash=sha256:21e686a21078b0f9cb8c8a961d99e6a4ddb88e0fc5ea6e130172ddddc2e5221a \
-    --hash=sha256:2415373395a831f53933c23ce051021e79c8cd7979822d8cc478547a3f4da8ef \
-    --hash=sha256:277518bf4fe74aa91489e1b20577473b19ee70fb97c374aa50830b279f25841b \
-    --hash=sha256:27b9baecb428899db6c0de572d6d305cfaf38ca1596b5c0542a5182e3e74e8c6 \
-    --hash=sha256:29a4cef9cb672363926f0470afc516dbf7305a14d8c54f7abbb5c199cd8f8179 \
-    --hash=sha256:3413c2ae377550f5487991d444428f1a8ae92784aac79caa8b1e3b89b175f77e \
-    --hash=sha256:351889afef0f485b84078ea40fe33727a0492b9af3904661b0abbafee0355b72 \
-    --hash=sha256:3ffaa2f0659e2f740473bcf03c702c39a8d4b2b7ffc629052028764324842c64 \
-    --hash=sha256:40a8e3b9e8773876d6e30daed22f016509e3987bab61b3b7fe309d7019a87451 \
-    --hash=sha256:414b9a78e14ffeb98128863314e62c3f24b8a86081066625700b7985b3f529bd \
-    --hash=sha256:43aca0a55ce1eefc0aefa6253661cb54571857b1a7b2964bd8a1e3ef4b729924 \
-    --hash=sha256:43b4899cfd091a9693a1278c4982f3e50f7fb7cff5153b05174b4afc9593b616 \
-    --hash=sha256:461f9dfdafa394c59cd6d818bdfdbab4028b83b02caadaff0ffd433faf4c9a7a \
-    --hash=sha256:4f9f6a650743f0ddee5593ac9e954ba1bdbc5e150bc066586d4f26127853ab94 \
-    --hash=sha256:53d8b764726d3af1a138dd353116f774e3862ec7e3794e0c8781e30db0f35dfc \
-    --hash=sha256:565c986f4b45c020f5421a4cea13ef294dde9509a8577f29b2fc5edc7587fff8 \
-    --hash=sha256:5c5ae0a06e9ea030ab786b0251b32c7e4ce10e58d983c0d5c56029455180b5b9 \
-    --hash=sha256:5cb7bc1966d031aec37ddb9dcf15c2da5b2e9f7cc3ca7c54473a20a927e1eb91 \
-    --hash=sha256:5da841d81b1a05ef940a8567da92decaa15bc4d7dedb540a8c219ad83d91808a \
-    --hash=sha256:5fee4c04aad8932da9f8f710af2c1a15a83582cfb884152a9caa79d4efcdbf9c \
-    --hash=sha256:609e89d9f90b581c8d16358c9087df76024cf058fa693dd3e1e1620823f39670 \
-    --hash=sha256:6258f3260986990ba2fa8a874f8b6e808cf5abb51a94015ca3dc3c68aa4f30ea \
-    --hash=sha256:64efdf00c09e31efd754448a383ea241f55a994fd079866b92d2bbff598aad91 \
-    --hash=sha256:65b80c1ee7e14a87d6a068dd3b0aea268ffcabfe0498d38661b00c5b4b22e74c \
-    --hash=sha256:6741e6f3074a35e47c77b23a4e4f2d90db3ed905cb1c5e6e0d49bff2045632bc \
-    --hash=sha256:681088909d7e8fa9e31b9799aaa59ba5234c58e5e4f1951b4c4d1082a2e980e0 \
-    --hash=sha256:6b7a9d1db5dad90e2991645874f708e87d9a3c370c243c2d7684d28f7e133e6b \
-    --hash=sha256:7315f9137087c4e0ee73a761b163fc9aa3b19f5f606a7fc08d83fd3e4379af65 \
-    --hash=sha256:742aea052cf5ab5034a53c3846165bc3ce88d7c38e954120db0ab867ca242661 \
-    --hash=sha256:75af0b4c229ac519b155028fa1be632d812a519abba9b46b20e50c6caa184f19 \
-    --hash=sha256:7b5dd7cbae20285cdb597b10eb5a2c13aa9de6cde9bb64a3c1317427b1db1ae1 \
-    --hash=sha256:7d6daa89a00b58c37cb1747ec9fb7ac3bc5ffd5949f5888657dfddde6d1312e0 \
-    --hash=sha256:800429ac32c9b72909c671aaf17ecd13110f823ddb7db4dfef412a5587c2c24e \
-    --hash=sha256:806f3987ffe10e867bab0ddad45df1148a2b98221798457fa097ad85d6e8bc75 \
-    --hash=sha256:808b99604f7873c800c4840f55ff389936ef1948e4e87645eaf3fccbc8477ac4 \
-    --hash=sha256:80941e6d573197a0c28f394753de529bb436b1ca990ed6e765cf42426abc39f8 \
-    --hash=sha256:84cabc7095dd535ca934d57e9ce2a72ffd216e435a84acb06b2277b1de2689bd \
-    --hash=sha256:8637e29d13f478bc4f153d8daa9ffb16455f0a6cb287da1b432fdad2bfbd66c7 \
-    --hash=sha256:896866d2d436563fa2a43a9d72f417874f16b5545955c54a64941e87c1376c61 \
-    --hash=sha256:8e178e3e99d3c0ea8fc64b88447f7cac8ccf058af422a6cedc690d0eadd98c51 \
-    --hash=sha256:907bfa8a9cb790748a9aa4513e37c88c59660da3bcfffbd24a7d9e6abf224551 \
-    --hash=sha256:9212d6b86917a2300669511ed094a9406888362e085f2431a7da985a6b124f45 \
-    --hash=sha256:92a7fe4225365c5e3a8e598982269c6d6698d3e783b3b1ae979e7819f9cd55c1 \
-    --hash=sha256:935b9d1aed48fcfb3f838caac506f38e29621b44ccc4f8a64d575cb1b2a88644 \
-    --hash=sha256:97e9993d5ed946aba26baf9c1e8cf18adbab584b99f452ee72f7ee8acb882796 \
-    --hash=sha256:983976c2ab753166dc66d36af6e8ec15bb511e4a25856e2227e5f7e00a160587 \
-    --hash=sha256:9f5fefaca968e700ad1a4a9de98bf0869a94e397fe3524c4c9450c1445252304 \
-    --hash=sha256:a332ac4ccb84b6dde65dbace8431f3af08874bf9770719d32a635c4ef411b18b \
-    --hash=sha256:a40905599d8079e09f25027423aed94f2823adaf2868940de991e53a449e14a8 \
-    --hash=sha256:a6dfc2af5b082b635af6e08e0d1f9f1c4e04d17d4e2ca0ef96131e85eda6eb17 \
-    --hash=sha256:a786bf667724d84aa29b5db1c61b7bfdde380202aaca12c3461afd6b71743171 \
-    --hash=sha256:a83e0850cb8f5ac975291ebfc4170ba481f41a28065277f7f735c202cd8e0af3 \
-    --hash=sha256:aa0c9cc0b82b14766a99fbe6084409972266e82f459821cd26997a488a7261a7 \
-    --hash=sha256:b17fbdbe01c196e7e159aacb889e091f28e61020a8abeac07b68079b6e626988 \
-    --hash=sha256:b63e13dd27da389ed9475b3d28510f0f954bca0041e8e551b2a4eb1eab56a39a \
-    --hash=sha256:b6e53e82ec2db0717eabb276aa56cf4e500c9a7cec2c2e189b55c24f65a3e8c0 \
-    --hash=sha256:bb0984b30e973f7e2884362b7d23d0a348c7143ee559f38ef3eaab640144204c \
-    --hash=sha256:bc11908616c8a283cf7d664f77411a5ed2a02009b0097ff8abbba5e79128ccf2 \
-    --hash=sha256:bdec5e43377761c5dbca620efb69a77f6855c5a379e32ac5b158f54c84212b14 \
-    --hash=sha256:bef9768cab184e7ae6e559c032e95ba8d07b3023c289f79a2bd36e8bf85605a5 \
-    --hash=sha256:c990547452ee2800d8506c4150280757f88532f3de2a58e3022e9b179107862a \
-    --hash=sha256:ca94b6aac0d7af2a10ba08c0f888b3d5114439b6b3ef39968378723622fed377 \
-    --hash=sha256:cad302dc10fac357d3467a74a9561c90609768a6f73a1923b0fd851b6486f8b0 \
-    --hash=sha256:d0a7735df32ccbcc98b98a1ac785cc4b19b580be1bdf0aeb5c03223220ea09d5 \
-    --hash=sha256:d70347c8a5b7ccd803ec0c85c8709f036e6348f1e6a5bf048ecd9c64d3550b8b \
-    --hash=sha256:d70534cea9e7966169ad29a903b99fc507e932069a881d0965a1a84bb57f6c6d \
-    --hash=sha256:db44d5c160a90df2d24a24760bbd37607d53da0b34fb546c4c232af7192298ac \
-    --hash=sha256:e115c15e3bc727b1ca3e641a909f77f8ca72a64fff150f666fcc85e57701c26c \
-    --hash=sha256:e2479c7f02f9d505682dc47df8c0ea1fc5e264c4d1629a5d63fe3e2334b89554 \
-    --hash=sha256:e5dcbe95016e88437ecf33544ba5db21ef1b8dd6e1b434a2cb2a3d605299e643 \
-    --hash=sha256:e6bdb408f7c9dd2a5ff2b14a3b0bb6d4deb29fb9961e6eb3ae2031ae9a5cec13 \
-    --hash=sha256:e75d3dba8fc1ddfec0cd752108f93b83b4f8d6ab40e524a95d35f016b9683b09 \
-    --hash=sha256:efdc140e7b63b8f739d09a99033aa430accce485ff78e6d311973a67b6bf3208 \
-    --hash=sha256:f10c98f49227ed8383d28174ee95155a675c4ed7f85e2e573b04414f7e371bda \
-    --hash=sha256:f188028b5af6b8fb2e9a76ac0f841a575bd1bd396e46ef0840d9b88a48fdbcea \
-    --hash=sha256:f188d580bd870cda1e15183790d1cc2fa78f666e76077d103edf048eed9c356e \
-    --hash=sha256:f45bd71d1fa5e5749587613037b172e0b3b23159d1c00ef2fc920da6f470e6f0 \
-    --hash=sha256:f61333d817698bdcdd0f9d7793e365ac3d2a21c1f1eb02b32ad6aefb8d8ea831 \
-    --hash=sha256:fb125d860738a09d363a88daa0f59c4533529a90e564785e20fe875b200b6dbd
+    # via -r requirements_dev.in
+pillow==12.1.1 \
+    --hash=sha256:02f84dfad02693676692746df05b89cf25597560db2857363a208e393429f5e9 \
+    --hash=sha256:0330d233c1a0ead844fc097a7d16c0abff4c12e856c0b325f231820fee1f39da \
+    --hash=sha256:03edcc34d688572014ff223c125a3f77fb08091e4607e7745002fc214070b35f \
+    --hash=sha256:097690ba1f2efdeb165a20469d59d8bb03c55fb6621eb2041a060ae8ea3e9642 \
+    --hash=sha256:178aa072084bd88ec759052feca8e56cbb14a60b39322b99a049e58090479713 \
+    --hash=sha256:18e5bddd742a44b7e6b1e773ab5db102bd7a94c32555ba656e76d319d19c3850 \
+    --hash=sha256:1a9b0ee305220b392e1124a764ee4265bd063e54a751a6b62eff69992f457fa9 \
+    --hash=sha256:1f1625b72740fdda5d77b4def688eb8fd6490975d06b909fd19f13f391e077e0 \
+    --hash=sha256:1f1be78ce9466a7ee64bfda57bdba0f7cc499d9794d518b854816c41bf0aa4e9 \
+    --hash=sha256:1f90cff8aa76835cba5769f0b3121a22bd4eb9e6884cfe338216e557a9a548b8 \
+    --hash=sha256:21329ec8c96c6e979cd0dfd29406c40c1d52521a90544463057d2aaa937d66a6 \
+    --hash=sha256:2815a87ab27848db0321fb78c7f0b2c8649dee134b7f2b80c6a45c6831d75ccd \
+    --hash=sha256:2c1fc0f2ca5f96a3c8407e41cca26a16e46b21060fe6d5b099d2cb01412222f5 \
+    --hash=sha256:2e0c664be47252947d870ac0d327fea7e63985a08794758aa8af5b6cb6ec0c9c \
+    --hash=sha256:339ffdcb7cbeaa08221cd401d517d4b1fe7a9ed5d400e4a8039719238620ca35 \
+    --hash=sha256:344cf1e3dab3be4b1fa08e449323d98a2a3f819ad20f4b22e77a0ede31f0faa1 \
+    --hash=sha256:36341d06738a9f66c8287cf8b876d24b18db9bd8740fa0672c74e259ad408cff \
+    --hash=sha256:365b10bb9417dd4498c0e3b128018c4a624dc11c7b97d8cc54effe3b096f4c38 \
+    --hash=sha256:3a5cbdcddad0af3da87cb16b60d23648bc3b51967eb07223e9fed77a82b457c4 \
+    --hash=sha256:417423db963cb4be8bac3fc1204fe61610f6abeed1580a7a2cbb2fbda20f12af \
+    --hash=sha256:42fc1f4677106188ad9a55562bbade416f8b55456f522430fadab3cef7cd4e60 \
+    --hash=sha256:44ce27545b6efcf0fdbdceb31c9a5bdea9333e664cda58a7e674bb74608b3986 \
+    --hash=sha256:472a8d7ded663e6162dafdf20015c486a7009483ca671cece7a9279b512fcb13 \
+    --hash=sha256:47b94983da0c642de92ced1702c5b6c292a84bd3a8e1d1702ff923f183594717 \
+    --hash=sha256:495c302af3aad1ca67420ddd5c7bd480c8867ad173528767d906428057a11f0e \
+    --hash=sha256:4ceb838d4bd9dab43e06c363cab2eebf63846d6a4aeaea283bbdfd8f1a8ed58b \
+    --hash=sha256:50480dcd74fa63b8e78235957d302d98d98d82ccbfac4c7e12108ba9ecbdba15 \
+    --hash=sha256:518a48c2aab7ce596d3bf79d0e275661b846e86e4d0e7dec34712c30fe07f02a \
+    --hash=sha256:559b38da23606e68681337ad74622c4dbba02254fc9cb4488a305dd5975c7eeb \
+    --hash=sha256:578510d88c6229d735855e1f278aa305270438d36a05031dfaae5067cc8eb04d \
+    --hash=sha256:597bd9c8419bc7c6af5604e55847789b69123bbe25d65cc6ad3012b4f3c98d8b \
+    --hash=sha256:5a8eb7ed8d4198bccbd07058416eeec51686b498e784eda166395a23eb99138e \
+    --hash=sha256:5c0dd1636633e7e6a0afe7bf6a51a14992b7f8e60de5789018ebbdfae55b040a \
+    --hash=sha256:5cb1785d97b0c3d1d1a16bc1d710c4a0049daefc4935f3a8f31f827f4d3d2e7f \
+    --hash=sha256:5d1f9575a12bed9e9eedd9a4972834b08c97a352bd17955ccdebfeca5913fa0a \
+    --hash=sha256:5d8c41325b382c07799a3682c1c258469ea2ff97103c53717b7893862d0c98ce \
+    --hash=sha256:5dae5f21afb91322f2ff791895ddd8889e5e947ff59f71b46041c8ce6db790bc \
+    --hash=sha256:600fd103672b925fe62ed08e0d874ea34d692474df6f4bf7ebe148b30f89f39f \
+    --hash=sha256:6408a7b064595afcab0a49393a413732a35788f2a5092fdc6266952ed67de586 \
+    --hash=sha256:652a2c9ccfb556235b2b501a3a7cf3742148cd22e04b5625c5fe057ea3e3191f \
+    --hash=sha256:665e1b916b043cef294bc54d47bf02d87e13f769bc4bc5fa225a24b3a6c5aca9 \
+    --hash=sha256:691ab2ac363b8217f7d31b3497108fb1f50faab2f75dfb03284ec2f217e87bf8 \
+    --hash=sha256:6c52f062424c523d6c4db85518774cc3d50f5539dd6eed32b8f6229b26f24d40 \
+    --hash=sha256:6c6db3b84c87d48d0088943bf33440e0c42370b99b1c2a7989216f7b42eede60 \
+    --hash=sha256:7311c0a0dcadb89b36b7025dfd8326ecfa36964e29913074d47382706e516a7c \
+    --hash=sha256:7aac39bcf8d4770d089588a2e1dd111cbaa42df5a94be3114222057d68336bd0 \
+    --hash=sha256:7b03048319bfc6170e93bd60728a1af51d3dd7704935feb228c4d4faab35d334 \
+    --hash=sha256:7e7976bf1910a8116b523b9f9f58bf410f3e8aa330cd9a2bb2953f9266ab49af \
+    --hash=sha256:8089c852a56c2966cf18835db62d9b34fef7ba74c726ad943928d494fa7f4735 \
+    --hash=sha256:86172b0831b82ce4f7877f280055892b31179e1576aa00d0df3bb1bbf8c3e524 \
+    --hash=sha256:89b54027a766529136a06cfebeecb3a04900397a3590fd252160b888479517bf \
+    --hash=sha256:89c7e895002bbe49cdc5426150377cbbc04767d7547ed145473f496dfa40408b \
+    --hash=sha256:8b7e5304e34942bf62e15184219a7b5ad4ff7f3bb5cca4d984f37df1a0e1aee2 \
+    --hash=sha256:8fd420ef0c52c88b5a035a0886f367748c72147b2b8f384c9d12656678dfdfa9 \
+    --hash=sha256:98edb152429ab62a1818039744d8fbb3ccab98a7c29fc3d5fcef158f3f1f68b7 \
+    --hash=sha256:99c1506ea77c11531d75e3a412832a13a71c7ebc8192ab9e4b2e355555920e3e \
+    --hash=sha256:9ad8fa5937ab05218e2b6a4cff30295ad35afd2f83ac592e68c0d871bb0fdbc4 \
+    --hash=sha256:9f51079765661884a486727f0729d29054242f74b46186026582b4e4769918e4 \
+    --hash=sha256:a003d7422449f6d1e3a34e3dd4110c22148336918ddbfc6a32581cd54b2e0b2b \
+    --hash=sha256:a0b1cd6232e2b618adcc54d9882e4e662a089d5768cd188f7c245b4c8c44a397 \
+    --hash=sha256:a285e3eb7a5a45a2ff504e31f4a8d1b12ef62e84e5411c6804a42197c1cf586c \
+    --hash=sha256:a37691702ed687799de29a518d63d4682d9016932db66d4e90c345831b02fb4e \
+    --hash=sha256:a550ae29b95c6dc13cf69e2c9dc5747f814c54eeb2e32d683e5e93af56caa029 \
+    --hash=sha256:ab174cd7d29a62dd139c44bf74b698039328f45cb03b4596c43473a46656b2f3 \
+    --hash=sha256:ab323b787d6e18b3d91a72fc99b1a2c28651e4358749842b8f8dfacd28ef2052 \
+    --hash=sha256:adebb5bee0f0af4909c30db0d890c773d1a92ffe83da908e2e9e720f8edf3984 \
+    --hash=sha256:aee2810642b2898bb187ced9b349e95d2a7272930796e022efaf12e99dccd293 \
+    --hash=sha256:af9a332e572978f0218686636610555ae3defd1633597be015ed50289a03c523 \
+    --hash=sha256:b574c51cf7d5d62e9be37ba446224b59a2da26dc4c1bb2ecbe936a4fb1a7cb7f \
+    --hash=sha256:b66e95d05ba806247aaa1561f080abc7975daf715c30780ff92a20e4ec546e1b \
+    --hash=sha256:b81b5e3511211631b3f672a595e3221252c90af017e399056d0faabb9538aa80 \
+    --hash=sha256:b957b71c6b2387610f556a7eb0828afbe40b4a98036fc0d2acfa5a44a0c2036f \
+    --hash=sha256:bb66b7cc26f50977108790e2456b7921e773f23db5630261102233eb355a3b79 \
+    --hash=sha256:c6008de247150668a705a6338156efb92334113421ceecf7438a12c9a12dab23 \
+    --hash=sha256:c7697918b5be27424e9ce568193efd13d925c4481dd364e43f5dff72d33e10f8 \
+    --hash=sha256:cb9bb857b2d057c6dfc72ac5f3b44836924ba15721882ef103cecb40d002d80e \
+    --hash=sha256:cc7d296b5ea4d29e6570dabeaed58d31c3fea35a633a69679fb03d7664f43fb3 \
+    --hash=sha256:d242e8ac078781f1de88bf823d70c1a9b3c7950a44cdf4b7c012e22ccbcd8e4e \
+    --hash=sha256:d2912fd8114fc5545aa3a4b5576512f64c55a03f3ebcca4c10194d593d43ea36 \
+    --hash=sha256:d470ab1178551dd17fdba0fef463359c41aaa613cdcd7ff8373f54be629f9f8f \
+    --hash=sha256:d4ce8e329c93845720cd2014659ca67eac35f6433fd3050393d85f3ecef0dad5 \
+    --hash=sha256:d6e4571eedf43af33d0fc233a382a76e849badbccdf1ac438841308652a08e1f \
+    --hash=sha256:e65498daf4b583091ccbb2556c7000abf0f3349fcd57ef7adc9a84a394ed29f6 \
+    --hash=sha256:e879bb6cd5c73848ef3b2b48b8af9ff08c5b71ecda8048b7dd22d8a33f60be32 \
+    --hash=sha256:e9e8064fb1cc019296958595f6db671fba95209e3ceb0c4734c9baf97de04b20 \
+    --hash=sha256:f7ed2c6543bad5a7d5530eb9e78c53132f93dfa44a28492db88b41cdab885202 \
+    --hash=sha256:f95c00d5d6700b2b890479664a06e754974848afaae5e21beb4d83c106923fd0 \
+    --hash=sha256:f975aa7ef9684ce7e2c18a3aa8f8e2106ce1e46b94ab713d156b2898811651d3 \
+    --hash=sha256:fbfa2a7c10cc2623f412753cddf391c7f971c52ca40a3f65dc5039b2939e8563 \
+    --hash=sha256:fc354a04072b765eccf2204f588a7a532c9511e8b9c7f900e1b64e3e33487090 \
+    --hash=sha256:fc44ef1f3de4f45b50ccf9136999d71abb99dca7706bc75d222ed350b9fd2289
    # via
-    #   -r .github/scripts/requirements_dev.in
+    #   -r requirements_dev.in
    #   pdf2image
    #   weasyprint
 platformdirs==4.5.1 \
@@ -364,7 +364,7 @@ platformdirs==4.5.1 \
 pre-commit==4.5.1 \
    --hash=sha256:3b3afd891e97337708c1674210f8eba659b52a38ea5f822ff142d10786221f77 \
    --hash=sha256:eb545fcff725875197837263e977ea257a402056661f09dae08e4b149b030a61
-    # via -r .github/scripts/requirements_dev.in
+    # via -r requirements_dev.in
 pycparser==3.0 \
    --hash=sha256:600f49d217304a5902ac3c37e1281c9fe94e4d0489de643a9504c5cdfdfc6b29 \
    --hash=sha256:b727414169a36b7d524c1c3e31839a521725078d7b2ff038656844266160a992
@@ -465,7 +465,7 @@ tinyhtml5==2.0.0 \
 unoserver==3.6 \
    --hash=sha256:25c360fa194396a89cb79b4edd2735f8e4f0fd8531e59db3952114585bd7df05 \
    --hash=sha256:e446bcb3638c51880f002aaeecab1cf74dfa9df81035f027f7ff2e081b6d7015
-    # via -r .github/scripts/requirements_dev.in
+    # via -r requirements_dev.in
 virtualenv==20.36.1 \
    --hash=sha256:575a8d6b124ef88f6f51d56d656132389f961062a9177016a50e4f507bbcc19f \
    --hash=sha256:8befb5c81842c641f8ee658481e42641c68b5eab3521d8e092d18320902466ba
@@ -473,7 +473,7 @@ virtualenv==20.36.1 \
 weasyprint==68.0 \
    --hash=sha256:447f40898b747cb44ac31a5d493d512e7441fd56e13f63744c099383bbf9cda9 \
    --hash=sha256:c2cb40c71b50837c5971f00171c9e4078e8c9912dd7c217f3e90e068f11e8aa1
-    # via -r .github/scripts/requirements_dev.in
+    # via -r requirements_dev.in
 webencodings==0.5.1 \
    --hash=sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78 \
    --hash=sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923
@@ -500,8 +500,8 @@ zopfli==0.4.0 \
 pip==26.0 \
    --hash=sha256:3ce220a0a17915972fbf1ab451baae1521c4539e778b28127efa79b974aff0fa \
    --hash=sha256:98436feffb9e31bc9339cf369fd55d3331b1580b6a6f1173bacacddcf9c34754
-    # via -r .github/scripts/requirements_dev.in
+    # via -r requirements_dev.in
 setuptools==80.10.2 \
    --hash=sha256:8b0e9d10c784bf7d262c4e5ec5d4ec94127ce206e8738f29a437945fbc219b70 \
    --hash=sha256:95b30ddfb717250edb492926c92b5221f7ef3fbcc2b07579bcd4a27da21d0173
-    # via -r .github/scripts/requirements_dev.in
+    # via -r requirements_dev.in
@@ -35,7 +35,7 @@ jobs:
      pr_ref: ${{ steps.resolve.outputs.ref }}
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -111,7 +111,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -231,6 +231,8 @@ jobs:
          context: .
          file: ./docker/embedded/Dockerfile
          push: true
+          cache-from: type=gha,scope=stirling-pdf-latest
+          cache-to: type=gha,mode=max,scope=stirling-pdf-latest
          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-${{ steps.commit-hash.outputs.app_short }}
          build-args: VERSION_TAG=v2-alpha
          platforms: linux/amd64
@@ -357,7 +359,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -40,7 +40,7 @@ jobs:
      enable_enterprise: ${{ steps.check-pro-flag.outputs.enable_enterprise }}
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -128,7 +128,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -150,10 +150,10 @@ jobs:
          ref: refs/pull/${{ needs.check-comment.outputs.pr_number }}/merge
          token: ${{ steps.setup-bot.outputs.token }}

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -190,6 +190,8 @@ jobs:
          context: .
          file: ./docker/embedded/Dockerfile
          push: true
+          cache-from: type=gha,scope=stirling-pdf-latest
+          cache-to: type=gha,mode=max,scope=stirling-pdf-latest
          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:pr-${{ needs.check-comment.outputs.pr_number }}
          build-args: VERSION_TAG=alpha
          platforms: linux/amd64
@@ -370,7 +372,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -21,7 +21,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -0,0 +1,83 @@
+name: AI Engine CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  engine:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+    defaults:
+      run:
+        working-directory: engine
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+
+      - name: Install dependencies
+        run: make install
+
+      - name: Run fixers
+        # Ignore errors here because we're going to add comments for them in the following steps before actually failing
+        run: make fix || true
+
+      - name: Check for fixer changes
+        id: fixer_changes
+        run: |
+          if git diff --quiet; then
+            echo "changed=false" >> "$GITHUB_OUTPUT"
+          else
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Post fixer suggestions
+        if: steps.fixer_changes.outputs.changed == 'true' && github.event_name == 'pull_request'
+        uses: reviewdog/action-suggester@v1
+        continue-on-error: true
+        with:
+          tool_name: engine-make-fix
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          filter_mode: file
+          fail_level: any
+          level: info
+
+      - name: Comment on fixer suggestions
+        if: steps.fixer_changes.outputs.changed == 'true' && github.event_name == 'pull_request'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: "The Python code in your PR has formatting/linting issues. Consider running `make fix` locally or setting up your editor's Ruff integration to auto-format and lint your files as you go, or commit the suggested changes on this PR.",
+            });
+
+      - name: Verify fixer changes are committed
+        if: steps.fixer_changes.outputs.changed == 'true'
+        run: |
+          if ! git diff --exit-code; then
+            echo "Fixes are out of date."
+            echo "Apply the reviewdog suggestions or run 'make fix' from engine/ and commit the updated files."
+            git --no-pager diff --stat
+            exit 1
+          fi
+
+      - name: Run linting
+        run: make lint
+
+      - name: Run type checking
+        run: make typecheck
+
+      - name: Run tests
+        run: make test
@@ -19,7 +19,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -87,7 +87,7 @@ jobs:
      - name: AI PR Title Analysis
        if: steps.actor.outputs.is_repo_dev == 'true'
        id: ai-title-analysis
-        uses: actions/ai-inference@a6101c89c6feaecc585efdd8d461f18bb7896f20 # v2.0.5
+        uses: actions/ai-inference@e09e65981758de8b2fdab13c2bfb7c7d5493b0b6 # v2.0.7
        with:
          model: openai/gpt-4o
          system-prompt-file: ".github/config/system-prompt.txt"
@@ -16,7 +16,7 @@ jobs:
      pull-requests: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -29,7 +29,7 @@ jobs:
          app-id: ${{ secrets.GH_APP_ID }}
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

-      - uses: srvaroa/labeler@0a20eccb8c94a1ee0bed5f16859aece1c45c3e55 # v1.13.0
+      - uses: srvaroa/labeler@bf262763a8a8e191f5847873aecc0f29df84f957 # v1.14.0
        with:
          config_path: .github/labeler-config-srvaroa.yml
          use_local_config: false
@@ -32,14 +32,14 @@ jobs:
      frontend: ${{ steps.changes.outputs.frontend }}
    steps:
      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Check for file changes
-        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
+        uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
        id: changes
        with:
          filters: .github/config/.files.yaml
@@ -52,11 +52,11 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        jdk-version: [17, 21]
+        jdk-version: [21, 25]
        spring-security: [true, false]
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit
      - name: Checkout repository
@@ -68,10 +68,20 @@ jobs:
          java-version: ${{ matrix.jdk-version }}
          distribution: "temurin"

+      - name: Cache Gradle dependency artifacts
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches/modules-2/files-2.1
+            ~/.gradle/caches/modules-2/metadata-2.*
+          key: gradle-deps-${{ runner.os }}-jdk-${{ matrix.jdk-version }}-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
          gradle-version: 8.14
+          cache-disabled: true

      - name: Build with Gradle and spring security ${{ matrix.spring-security }}
        run: ./gradlew build -PnoSpotless
@@ -101,7 +111,7 @@ jobs:

      - name: Upload Test Reports
        if: always()
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: test-reports-jdk-${{ matrix.jdk-version }}-spring-security-${{ matrix.spring-security }}
          path: |
@@ -130,23 +140,33 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

+      - name: Cache Gradle dependency artifacts
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches/modules-2/files-2.1
+            ~/.gradle/caches/modules-2/metadata-2.*
+          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
          gradle-version: 8.14
+          cache-disabled: true

      - name: Generate OpenAPI documentation
        run: ./gradlew :stirling-pdf:generateOpenApiDocs
@@ -157,7 +177,7 @@ jobs:
          DISABLE_ADDITIONAL_FEATURES: true

      - name: Upload OpenAPI Documentation
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: openapi-docs
          path: ./SwaggerDoc.json
@@ -168,13 +188,13 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Set up Node.js
-        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: "22"
          cache: "npm"
@@ -182,7 +202,7 @@ jobs:
      - name: Install frontend dependencies
        run: cd frontend && npm ci
      - name: Type-check frontend
-        run: cd frontend && npm run prebuild && npm run typecheck:all
+        run: cd frontend && npm run prep && npm run typecheck:all
      - name: Lint frontend
        run: cd frontend && npm run lint
      - name: Build frontend
@@ -190,7 +210,7 @@ jobs:
      - name: Run frontend tests
        run: cd frontend && npm run test -- --run
      - name: Upload frontend build artifacts
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: frontend-build
          path: frontend/dist/
@@ -202,26 +222,41 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

+      - name: Cache Gradle dependency artifacts
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches/modules-2/files-2.1
+            ~/.gradle/caches/modules-2/metadata-2.*
+          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
          gradle-version: 8.14
+          cache-disabled: true

      - name: check the licenses for compatibility
-        run: ./gradlew checkLicense
+        # NOTE: --no-parallel is intentional here. Running the checkLicense task in parallel with other
+        # Gradle tasks has been observed to cause intermittent failures with the dependency license
+        # checking plugin on this Gradle version. Disabling parallel execution trades some build speed
+        # for more reliable, deterministic license checks. If upgrading Gradle or the plugin, consider
+        # re-evaluating whether this flag is still required before removing it.
+        run: ./gradlew checkLicense --no-parallel
        env:
          MAVEN_USER: ${{ secrets.MAVEN_USER }}
          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
@@ -229,7 +264,7 @@ jobs:

      - name: FAILED - check the licenses for compatibility
        if: failure()
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: dependencies-without-allowed-license.json
          path: build/reports/dependency-license/dependencies-without-allowed-license.json
@@ -253,37 +288,55 @@ jobs:
    #     )

    runs-on: ubuntu-latest
+    permissions:
+      actions: write
+      contents: read
+      checks: write

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - name: Checkout Repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

+      - name: Cache Gradle dependency artifacts
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches/modules-2/files-2.1
+            ~/.gradle/caches/modules-2/metadata-2.*
+          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
          gradle-version: 8.14
+          cache-disabled: true

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0

+      # Expose ACTIONS_RUNTIME_TOKEN / ACTIONS_RESULTS_URL for docker buildx type=gha cache backend.
+      - name: Expose GitHub runtime for Buildx cache
+        uses: crazy-max/ghaction-github-runtime@04d248b84655b509d8c44dc1d6f990c879747487 # v4.0.0
+
      - name: Install Docker Compose
        run: |
          sudo curl -SL "https://github.com/docker/compose/releases/download/v2.39.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
          sudo chmod +x /usr/local/bin/docker-compose

      - name: Set up Python
-        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: "3.12"
          cache: "pip" # caching pip dependencies
@@ -292,6 +345,7 @@ jobs:
      - name: Pip requirements
        run: |
          pip install --require-hashes -r ./testing/cucumber/requirements.txt
+          pip install behave-html-formatter

      - name: Run Docker Compose Tests
        run: |
@@ -304,6 +358,24 @@ jobs:
          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
          MAVEN_PUBLIC_URL: ${{ secrets.MAVEN_PUBLIC_URL }}

+      - name: Upload Cucumber Report
+        if: always()
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
+        with:
+          name: cucumber-report
+          path: testing/cucumber/report.html
+          retention-days: 7
+          if-no-files-found: warn
+
+      - name: Cucumber Test Report
+        if: always()
+        uses: dorny/test-reporter@b082adf0eced0765477756c2a610396589b8c637 # v2.5.0
+        with:
+          name: Cucumber Tests
+          path: testing/cucumber/junit/*.xml
+          reporter: java-junit
+          fail-on-error: false
+
  test-build-docker-images:
    if: github.event_name == 'pull_request' && needs.files-changed.outputs.project == 'true'
    needs: [files-changed, build, check-generateOpenApiDocs, check-licence]
@@ -314,13 +386,16 @@ jobs:
        include:
          - docker-rev: docker/embedded/Dockerfile
            artifact-suffix: Dockerfile
+            cache-scope: stirling-pdf-latest
          - docker-rev: docker/embedded/Dockerfile.ultra-lite
            artifact-suffix: Dockerfile.ultra-lite
+            cache-scope: stirling-pdf-ultra-lite
          - docker-rev: docker/embedded/Dockerfile.fat
            artifact-suffix: Dockerfile.fat
+            cache-scope: stirling-pdf-fat
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -334,16 +409,26 @@ jobs:
          docker system prune -af || true
          echo "Disk space after cleanup:" && df -h

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

+      - name: Cache Gradle dependency artifacts
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches/modules-2/files-2.1
+            ~/.gradle/caches/modules-2/metadata-2.*
+          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
          gradle-version: 8.14
+          cache-disabled: true

      - name: Build application
        run: ./gradlew build
@@ -368,15 +453,15 @@ jobs:
          context: .
          file: ./${{ matrix.docker-rev }}
          push: false
-          cache-from: type=gha,scope=${{ matrix.artifact-suffix }}
-          cache-to: type=gha,mode=max,scope=${{ matrix.artifact-suffix }}
+          cache-from: type=gha,scope=${{ matrix.cache-scope }}
+          cache-to: type=gha,mode=max,scope=${{ matrix.cache-scope }}
          platforms: linux/amd64,linux/arm64/v8
          provenance: true
          sbom: true

      - name: Upload Reports
        if: always()
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: reports-docker-${{ matrix.artifact-suffix }}
          path: |
@@ -27,7 +27,7 @@ jobs:
      pull-requests: write # Allow writing to pull requests
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -196,7 +196,7 @@ jobs:
            core.exportVariable("REFERENCE_FILE", referenceFilePath);

      - name: Set up Python
-        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: "3.12"

@@ -17,7 +17,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -18,7 +18,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -97,6 +97,8 @@ jobs:
          context: .
          file: ./docker/frontend/Dockerfile
          push: true
+          cache-from: type=gha,scope=stirling-v2-frontend
+          cache-to: type=gha,mode=max,scope=stirling-v2-frontend
          tags: |
            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-${{ steps.commit-hashes.outputs.frontend_short }}
            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-latest
@@ -110,6 +112,8 @@ jobs:
          context: .
          file: ./docker/backend/Dockerfile
          push: true
+          cache-from: type=gha,scope=stirling-v2-backend
+          cache-to: type=gha,mode=max,scope=stirling-v2-backend
          tags: |
            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-backend-${{ steps.commit-hashes.outputs.backend_short }}
            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-backend-latest
@@ -25,7 +25,7 @@ jobs:
      licenses-backend: ${{ steps.changes.outputs.licenses-backend }}
    steps:
      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -33,7 +33,7 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Check for file changes
-        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
+        uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
        id: changes
        with:
          filters: .github/config/.files.yaml
@@ -49,7 +49,7 @@ jobs:
      repository-projects: write # Required for enabling automerge
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -77,7 +77,7 @@ jobs:
          persist-credentials: false

      - name: Set up Node.js
-        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: "22"
          cache: "npm"
@@ -312,7 +312,7 @@ jobs:
      repository-projects: write # Required for enabling automerge
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -330,10 +330,10 @@ jobs:
          app-id: ${{ secrets.GH_APP_ID }}
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -344,7 +344,12 @@ jobs:
      - name: Check licenses and generate report
        id: license-check
        run: |
-          ./gradlew checkLicense generateLicenseReport || echo "LICENSE_CHECK_FAILED=true" >> $GITHUB_ENV
+          # NOTE: --no-parallel is intentional here. Running the license-checking tasks in parallel has
+          # previously caused intermittent concurrency issues in CI (e.g. flaky failures in the license
+          # plugin/Gradle when multiple projects are evaluated concurrently). Disabling parallelism trades
+          # some build speed for more reliable license reports. If the underlying issues are resolved in
+          # future Gradle or plugin versions, this flag can be reconsidered.
+          ./gradlew checkLicense generateLicenseReport --no-parallel || echo "LICENSE_CHECK_FAILED=true" >> $GITHUB_ENV
        env:
          MAVEN_USER: ${{ secrets.MAVEN_USER }}
          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
@@ -364,7 +369,7 @@ jobs:

      - name: Upload artifact on license issues
        if: env.LICENSE_WARNINGS_EXIST == 'true'
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: backend-dependencies-without-allowed-license.json
          path: build/reports/dependency-license/dependencies-without-allowed-license.json
@@ -15,7 +15,7 @@ jobs:
      issues: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -21,8 +21,6 @@ on:
          - windows
          - macos
          - linux
-  push:
-    branches: [main, V2-master]
  release:
    types: [created]

@@ -38,18 +36,28 @@ jobs:
      version: ${{ steps.versionNumber.outputs.versionNumber }}
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

+      - name: Cache Gradle dependencies
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
@@ -111,16 +119,16 @@ jobs:
            file_suffix: "-server"
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -130,7 +138,7 @@ jobs:

      - name: Setup Node.js
        if: matrix.variant.build_frontend == true
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 22
          cache: "npm"
@@ -154,7 +162,7 @@ jobs:
          cp app/core/build/libs/stirling-pdf-${{ needs.determine-matrix.outputs.version }}.jar ./jar-dist/Stirling-PDF${{ matrix.variant.file_suffix }}.jar

      - name: Upload JAR artifacts
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: jar${{ matrix.variant.file_suffix }}
          path: ./jar-dist/*.jar
@@ -171,7 +179,7 @@ jobs:
      WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -185,7 +193,7 @@ jobs:
          sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf libjavascriptcoregtk-4.0-dev libsoup2.4-dev libjavascriptcoregtk-4.1-dev libsoup-3.0-dev

      - name: Setup Node.js
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 22
          cache: "npm"
@@ -197,10 +205,10 @@ jobs:
          toolchain: stable
          targets: ${{ (matrix.platform == 'macos-15' || matrix.platform == 'macos-15-intel') && 'aarch64-apple-darwin,x86_64-apple-darwin' || '' }}

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -291,7 +299,7 @@ jobs:
      - name: Setup DigiCert KeyLocker
        id: digicert-setup
        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && (github.event_name == 'release' || github.ref == 'refs/heads/V2-master') }}
-        uses: digicert/ssm-code-signing@af7f4b07694120e514fe5b19f0598af3c20256e3 # v1.2.0
+        uses: digicert/ssm-code-signing@1d820463733701cf1484c7eb5d7d24a15ca2c454 # v1.2.1
        env:
          SM_API_KEY: ${{ secrets.SM_API_KEY }}
          SM_CLIENT_CERT_FILE_B64: ${{ secrets.SM_CLIENT_CERT_FILE_B64 }}
@@ -411,8 +419,9 @@ jobs:
          APPIMAGETOOL_SIGN_PASSPHRASE: ${{ secrets.APPIMAGETOOL_SIGN_PASSPHRASE }}
          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
-          VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY: ${{ secrets.VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY }}
-          VITE_SAAS_SERVER_URL: ${{ secrets.VITE_SAAS_SERVER_URL }}
+          VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY: ${{ secrets.VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY || 'sb_publishable_UHz2SVRF5mvdrPHWkRteyA_yNlZTkYb' }}
+          VITE_SAAS_SERVER_URL: ${{ secrets.VITE_SAAS_SERVER_URL || 'https://app.stirlingpdf.com' }}
+          VITE_SAAS_BACKEND_API_URL: ${{ secrets.VITE_SAAS_BACKEND_API_URL || 'https://api.stirlingpdf.com' }}
          # Only enable Windows signing in Tauri when on release or V2-master
          SIGN: ${{ (github.event_name == 'release' || github.ref == 'refs/heads/V2-master') && (env.SM_API_KEY == '' && env.WINDOWS_CERTIFICATE != '') && '1' || '0' }}
          CI: true
@@ -533,7 +542,7 @@ jobs:
          fi

      - name: Upload build artifacts
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: Stirling-PDF-${{ matrix.name }}
          path: ./dist/*
@@ -547,30 +556,30 @@ jobs:
      contents: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - name: Download all Tauri artifacts
-        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          pattern: Stirling-PDF-*
          path: ./artifacts/tauri

      - name: Download JAR artifact (default)
-        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: jar
          path: ./artifacts/jars

      - name: Download JAR artifact (with login)
-        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: jar-with-login
          path: ./artifacts/jars

      - name: Download JAR artifact (server only)
-        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: jar-server
          path: ./artifacts/jars
@@ -21,7 +21,7 @@ jobs:
      pull-requests: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -39,7 +39,7 @@ jobs:
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

      - name: Set up Python
-        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: 3.12
          cache: "pip" # caching pip dependencies
@@ -59,10 +59,10 @@ jobs:
          pre-commit run trailing-whitespace --all-files -c .pre-commit-config.yaml
        continue-on-error: true

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: 21
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -33,18 +33,28 @@ jobs:
      id-token: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

+      - name: Cache Gradle dependencies
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-
+
      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
        with:
@@ -96,7 +106,7 @@ jobs:

      - name: Generate tags for latest
        id: meta
-        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
        with:
          images: |
            ${{ secrets.DOCKER_HUB_USERNAME }}/s-pdf
@@ -116,8 +126,8 @@ jobs:
          context: .
          file: ./docker/embedded/Dockerfile
          push: true
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          cache-from: type=gha,scope=stirling-pdf-latest
+          cache-to: type=gha,mode=max,scope=stirling-pdf-latest
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: VERSION_TAG=${{ steps.versionNumber.outputs.versionNumber }}
@@ -141,7 +151,7 @@ jobs:

      - name: Generate tags for latest-fat
        id: meta-fat
-        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
        if: github.ref != 'refs/heads/main' && github.ref != 'refs/heads/testMain'
        with:
          images: |
@@ -162,8 +172,8 @@ jobs:
          context: .
          file: ./docker/embedded/Dockerfile.fat
          push: true
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          cache-from: type=gha,scope=stirling-pdf-fat
+          cache-to: type=gha,mode=max,scope=stirling-pdf-fat
          tags: ${{ steps.meta-fat.outputs.tags }}
          labels: ${{ steps.meta-fat.outputs.labels }}
          build-args: VERSION_TAG=${{ steps.versionNumber.outputs.versionNumber }}
@@ -185,7 +195,7 @@ jobs:

      - name: Generate tags for ultra-lite
        id: meta-lite
-        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
        if: github.ref != 'refs/heads/main' && github.ref != 'refs/heads/testMain'
        with:
          images: |
@@ -206,8 +216,8 @@ jobs:
          context: .
          file: ./docker/embedded/Dockerfile.ultra-lite
          push: true
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          cache-from: type=gha,scope=stirling-pdf-ultra-lite
+          cache-to: type=gha,mode=max,scope=stirling-pdf-ultra-lite
          tags: ${{ steps.meta-lite.outputs.tags }}
          labels: ${{ steps.meta-lite.outputs.labels }}
          build-args: VERSION_TAG=${{ steps.versionNumber.outputs.versionNumber }}
@@ -35,7 +35,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -67,7 +67,7 @@ jobs:
      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
      # format to the repository Actions tab.
      - name: "Upload artifact"
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: SARIF file
          path: results.sarif
@@ -75,6 +75,6 @@ jobs:

      # Upload the results to GitHub's code scanning dashboard.
      - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@cdefb33c0f6224e58673d9004f47f7cb3e328b89 # v3.29.5
+        uses: github/codeql-action/upload-sarif@0d579ffd059c29b07949a3cce3983f0780820c98 # v3.29.5
        with:
          sarif_file: results.sarif
@@ -17,7 +17,7 @@ jobs:
      pull-requests: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -27,16 +27,16 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -35,7 +35,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -51,7 +51,7 @@ jobs:
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

      - name: Set up Python
-        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: "3.12"
          cache: "pip" # caching pip dependencies
@@ -14,14 +14,16 @@ on:
          - macos
          - linux
  pull_request:
-    branches: [main, V2-tauri-windows]
+    branches: [main]
+    types: [opened, reopened, synchronize, ready_for_review]
    paths:
      - "frontend/src-tauri/**"
      - "frontend/src/desktop/**"
      - "frontend/tsconfig.desktop.json"
+      - "frontend/package.json"
+      - "frontend/package-lock.json"
+      - "frontend/vite.config.ts"
      - ".github/workflows/tauri-build.yml"
-  push:
-    branches: [main]

 permissions:
  contents: read
@@ -35,33 +37,48 @@ jobs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - name: Determine build matrix
        id: set-matrix
+        env:
+          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
        run: |
+          WINDOWS='{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64"}'
+          MACOS_ARM='{"platform":"macos-15","args":"--target aarch64-apple-darwin","name":"macos-aarch64"}'
+          MACOS_INTEL='{"platform":"macos-15-intel","args":"--target x86_64-apple-darwin","name":"macos-x86_64"}'
+          LINUX='{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64"}'
+
+          # Resolve requested platform (non-dispatch events always build all)
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            case "${{ github.event.inputs.platform }}" in
-              "windows")
-                echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64"}]}' >> $GITHUB_OUTPUT
-                ;;
-              "macos")
-                echo 'matrix={"include":[{"platform":"macos-15","args":"--target aarch64-apple-darwin","name":"macos-aarch64"},{"platform":"macos-15-intel","args":"--target x86_64-apple-darwin","name":"macos-x86_64"}]}' >> $GITHUB_OUTPUT
-                ;;
-              "linux")
-                echo 'matrix={"include":[{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64"}]}' >> $GITHUB_OUTPUT
-                ;;
-              *)
-                echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64"},{"platform":"macos-15","args":"--target aarch64-apple-darwin","name":"macos-aarch64"},{"platform":"macos-15-intel","args":"--target x86_64-apple-darwin","name":"macos-x86_64"},{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64"}]}' >> $GITHUB_OUTPUT
-                ;;
-            esac
+            PLATFORM="${{ github.event.inputs.platform }}"
          else
-            # For PR/push events, build all platforms
-            echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64"},{"platform":"macos-15","args":"--target aarch64-apple-darwin","name":"macos-aarch64"},{"platform":"macos-15-intel","args":"--target x86_64-apple-darwin","name":"macos-x86_64"},{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64"}]}' >> $GITHUB_OUTPUT
+            PLATFORM="all"
          fi

+          # Build candidate list
+          case "$PLATFORM" in
+            windows) ENTRIES=("$WINDOWS") ;;
+            macos)   ENTRIES=("$MACOS_ARM" "$MACOS_INTEL") ;;
+            linux)   ENTRIES=("$LINUX") ;;
+            *)       ENTRIES=("$WINDOWS" "$MACOS_ARM" "$MACOS_INTEL" "$LINUX") ;;
+          esac
+
+          # Drop macOS entries when Apple certificate secret is unavailable
+          if [ -z "$APPLE_CERTIFICATE" ]; then
+            echo "⚠️ APPLE_CERTIFICATE secret not available - skipping macOS builds"
+            FILTERED=()
+            for entry in "${ENTRIES[@]}"; do
+              [[ "$entry" != *'"macos'* ]] && FILTERED+=("$entry")
+            done
+            ENTRIES=("${FILTERED[@]}")
+          fi
+
+          JOINED=$(IFS=','; echo "${ENTRIES[*]}")
+          echo "matrix={\"include\":[$JOINED]}" >> $GITHUB_OUTPUT
+
  build:
    needs: determine-matrix
    strategy:
@@ -71,9 +88,10 @@ jobs:
    env:
      SM_API_KEY: ${{ secrets.SM_API_KEY }}
      WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
+      APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -87,7 +105,7 @@ jobs:
          sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf libjavascriptcoregtk-4.0-dev libsoup2.4-dev libjavascriptcoregtk-4.1-dev libsoup-3.0-dev

      - name: Setup Node.js
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 22
          cache: "npm"
@@ -99,10 +117,10 @@ jobs:
          toolchain: stable
          targets: ${{ (matrix.platform == 'macos-15' || matrix.platform == 'macos-15-intel') && 'aarch64-apple-darwin,x86_64-apple-darwin' || '' }}

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -194,7 +212,7 @@ jobs:
      - name: Setup DigiCert KeyLocker
        id: digicert-setup
        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
-        uses: digicert/ssm-code-signing@af7f4b07694120e514fe5b19f0598af3c20256e3 # v1.2.0
+        uses: digicert/ssm-code-signing@1d820463733701cf1484c7eb5d7d24a15ca2c454 # v1.2.1
        env:
          SM_API_KEY: ${{ secrets.SM_API_KEY }}
          SM_CLIENT_CERT_FILE_B64: ${{ secrets.SM_CLIENT_CERT_FILE_B64 }}
@@ -269,7 +287,7 @@ jobs:
          }

      - name: Import Apple Developer Certificate
-        if: matrix.platform == 'macos-15' || matrix.platform == 'macos-15-intel'
+        if: (matrix.platform == 'macos-15' || matrix.platform == 'macos-15-intel') && env.APPLE_CERTIFICATE != ''
        env:
          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
          APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
@@ -290,7 +308,7 @@ jobs:
          rm certificate.p12

      - name: Verify Certificate
-        if: matrix.platform == 'macos-15' || matrix.platform == 'macos-15-intel'
+        if: (matrix.platform == 'macos-15' || matrix.platform == 'macos-15-intel') && env.APPLE_CERTIFICATE != ''
        run: |
          echo "Verifying Apple Developer Certificate..."
          KEYCHAIN_PATH=$RUNNER_TEMP/app-signing.keychain-db
@@ -325,8 +343,9 @@ jobs:
          APPIMAGETOOL_SIGN_PASSPHRASE: ${{ secrets.APPIMAGETOOL_SIGN_PASSPHRASE }}
          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
-          VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY: ${{ secrets.VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY }}
-          VITE_SAAS_SERVER_URL: ${{ secrets.VITE_SAAS_SERVER_URL }}
+          VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY: ${{ secrets.VITE_SUPABASE_PUBLISHABLE_DEFAULT_KEY || 'sb_publishable_UHz2SVRF5mvdrPHWkRteyA_yNlZTkYb' }}
+          VITE_SAAS_SERVER_URL: ${{ secrets.VITE_SAAS_SERVER_URL || 'https://app.stirlingpdf.com' }}
+          VITE_SAAS_BACKEND_API_URL: ${{ secrets.VITE_SAAS_BACKEND_API_URL || 'https://api.stirlingpdf.com' }}
          # Only enable Windows signing in Tauri when on main
          SIGN: ${{ github.ref == 'refs/heads/main' && (env.SM_API_KEY == '' && env.WINDOWS_CERTIFICATE != '') && '1' || '0' }}
          CI: true
@@ -587,7 +606,7 @@ jobs:
          }

      - name: Upload artifacts
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: Stirling-PDF-${{ matrix.name }}
          path: ./dist/*
@@ -648,7 +667,7 @@ jobs:
      pull-requests: write
    steps:
      - name: Harden the runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -740,7 +759,7 @@ jobs:
    if: always()
    steps:
      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -25,17 +25,17 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

-      - name: Set up JDK 21
+      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
-          java-version: "21"
+          java-version: "25"
          distribution: "temurin"

      - name: Setup Gradle
@@ -72,6 +72,8 @@ jobs:
          context: .
          file: ./docker/embedded/Dockerfile
          push: true
+          cache-from: type=gha,scope=stirling-pdf-latest
+          cache-to: type=gha,mode=max,scope=stirling-pdf-latest
          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:test-${{ github.sha }}
          build-args: VERSION_TAG=${{ steps.versionNumber.outputs.versionNumber }}
          platforms: linux/amd64
@@ -129,14 +131,14 @@ jobs:
      frontend: ${{ steps.changes.outputs.frontend }}
    steps:
      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Check for file changes
-        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
+        uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
        id: changes
        with:
          filters: ".github/config/.files.yaml"
@@ -148,14 +150,14 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up Node
-        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          cache: "npm"
          cache-dependency-path: frontend/package-lock.json
@@ -184,7 +186,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@58077d3c7e43986b6b15fba718e8ea69e387dfcc # v2.15.1
        with:
          egress-policy: audit

@@ -158,6 +158,7 @@ __pycache__/

 # Virtual environments
 .env*
+!.env*.example
 .venv*
 env*/
 venv*/
@@ -0,0 +1,359 @@
+# AGENTS.md
+
+This file provides guidance to AI Agents when working with code in this repository.
+
+## Common Development Commands
+
+### Build and Test
+- **Build project**: `./gradlew clean build`
+- **Run locally**: `./gradlew bootRun`
+- **Full test suite**: `./test.sh` (builds all Docker variants and runs comprehensive tests)
+- **Code formatting**: `./gradlew spotlessApply` (runs automatically before compilation)
+
+### Docker Development
+- **Build ultra-lite**: `docker build -t stirlingtools/stirling-pdf:latest-ultra-lite -f ./Dockerfile.ultra-lite .`
+- **Build standard**: `docker build -t stirlingtools/stirling-pdf:latest -f ./Dockerfile .`
+- **Build fat version**: `docker build -t stirlingtools/stirling-pdf:latest-fat -f ./Dockerfile.fat .`
+- **Example compose files**: Located in `exampleYmlFiles/` directory
+
+### Security Mode Development
+Set `DOCKER_ENABLE_SECURITY=true` environment variable to enable security features during development. This is required for testing the full version locally.
+
+### Python Development
+Development for the AI engine happens in the `engine/` folder. It's built with Langchain and Pydantic and allows for the creation and editing of PDF documents. The frontend calls the Python via Java as a proxy.
+
+- Python version is 3.13; use modern Python features (type aliases, pattern matching, dataclasses, etc.) where they help clarity.
+- Write fully type-correct code; keep pyright clean and avoid `Any` unless strictly necessary.
+- JSON handling: deserialize into fully typed Pydantic models as early as possible, and serialize back from Pydantic models as late as possible.
+- Use Makefile commands for Python work:
+  - From `engine/`: `make check` to lint, type-check, test, etc. and `make fix` to fix easily fixable linting & formatting issues.
+- The project structure is defined in `engine/pyproject.toml`. Any new dependencies should be listed appropriately there, followed by running `make install`.
+- Prefer using classes to nesting functions, and make other similar architectural decisions to improve testability. Do not nest classes or functions unless specifically required to for the code construct (like a decorator).
+- All environment variables used within the code must begin with the `STIRLING_` prefix in order to keep them unique and easier to find.
+
+### Frontend Development
+- **Frontend dev server**: `cd frontend && npm run dev` (requires backend on localhost:8080)
+- **Tech Stack**: Vite + React + TypeScript + Mantine UI + TailwindCSS
+- **Proxy Configuration**: Vite proxies `/api/*` calls to backend (localhost:8080)
+- **Build Process**: DO NOT run build scripts manually - builds are handled by CI/CD pipelines
+- **Package Installation**: DO NOT run npm install commands - package management handled separately
+- **Deployment Options**:
+  - **Desktop App**: `npm run tauri-build` (native desktop application)
+  - **Web Server**: `npm run build` then serve dist/ folder
+  - **Development**: `npm run tauri-dev` for desktop dev mode
+
+#### Environment Variables
+- All `VITE_*` variables must be declared in the appropriate example file:
+  - `frontend/config/.env.example` — core, proprietary, and shared vars
+  - `frontend/config/.env.saas.example` — SaaS-only vars
+  - `frontend/config/.env.desktop.example` — desktop (Tauri)-only vars
+- Never use `|| 'hardcoded-fallback'` inline — put defaults in the example files
+- `npm run prep` / `prep:saas` / `prep:desktop` auto-create the env files from examples on first run, and error if any required keys are missing
+- These prep scripts run automatically at the start of all `dev*`, `build*`, and `tauri*` commands
+- See `frontend/README.md#environment-variables` for full documentation
+
+#### Import Paths - CRITICAL
+**ALWAYS use `@app/*` for imports.** Do not use `@core/*` or `@proprietary/*` unless explicitly wrapping/extending a lower layer implementation.
+
+```typescript
+// ✅ CORRECT - Use @app/* for all imports
+import { AppLayout } from "@app/components/AppLayout";
+import { useFileContext } from "@app/contexts/FileContext";
+import { FileContext } from "@app/contexts/FileContext";
+
+// ❌ WRONG - Do not use @core/* or @proprietary/* in normal code
+import { AppLayout } from "@core/components/AppLayout";
+import { useFileContext } from "@proprietary/contexts/FileContext";
+```
+
+**Only use explicit aliases when:**
+- Building layer-specific override that wraps a lower layer's component
+- Example: `import { AppProviders as CoreAppProviders } from "@core/components/AppProviders"` when creating proprietary/AppProviders.tsx that extends the core version
+
+The `@app/*` alias automatically resolves to the correct layer based on build target (core/proprietary/desktop) and handles the fallback cascade.
+
+#### Component Override Pattern (Stub/Shadow)
+Use this pattern for desktop-specific or proprietary-specific features WITHOUT runtime checks or conditionals.
+
+**How it works:**
+1. Core defines stub component (returns null or no-op)
+2. Desktop/proprietary overrides with same path/name
+3. Core imports via `@app/*` - higher layer "shadows" core in those builds
+4. No `@ts-ignore`, no `isTauri()` checks, no runtime conditionals!
+
+**Example - Desktop-specific footer:**
+
+```typescript
+// core/components/rightRail/RightRailFooterExtensions.tsx (stub)
+interface RightRailFooterExtensionsProps {
+  className?: string;
+}
+
+export function RightRailFooterExtensions(_props: RightRailFooterExtensionsProps) {
+  return null; // Stub - does nothing in web builds
+}
+```
+
+```tsx
+// desktop/components/rightRail/RightRailFooterExtensions.tsx (real implementation)
+import { Box } from '@mantine/core';
+import { BackendHealthIndicator } from '@app/components/BackendHealthIndicator';
+
+interface RightRailFooterExtensionsProps {
+  className?: string;
+}
+
+export function RightRailFooterExtensions({ className }: RightRailFooterExtensionsProps) {
+  return (
+    <Box className={className}>
+      <BackendHealthIndicator />
+    </Box>
+  );
+}
+```
+
+```tsx
+// core/components/shared/RightRail.tsx (usage - works in ALL builds)
+import { RightRailFooterExtensions } from '@app/components/rightRail/RightRailFooterExtensions';
+
+export function RightRail() {
+  return (
+    <div>
+      {/* In web builds: renders nothing (stub returns null) */}
+      {/* In desktop builds: renders BackendHealthIndicator */}
+      <RightRailFooterExtensions className="right-rail-footer" />
+    </div>
+  );
+}
+```
+
+**Build resolution:**
+- **Core build**: `@app/*` → `core/*` → Gets stub (returns null)
+- **Desktop build**: `@app/*` → `desktop/*` → Gets real implementation (shadows core)
+
+**Benefits:**
+- No runtime checks or feature flags
+- Type-safe across all builds
+- Clean, readable code
+- Build-time optimization (dead code elimination)
+
+#### Multi-Tool Workflow Architecture
+Frontend designed for **stateful document processing**:
+- Users upload PDFs once, then chain tools (split → merge → compress → view)
+- File state and processing results persist across tool switches
+- No file reloading between tools - performance critical for large PDFs (up to 100GB+)
+
+#### FileContext - Central State Management
+**Location**: `frontend/src/core/contexts/FileContext.tsx`
+- **Active files**: Currently loaded PDFs and their variants
+- **Tool navigation**: Current mode (viewer/pageEditor/fileEditor/toolName)
+- **Memory management**: PDF document cleanup, blob URL lifecycle, Web Worker management
+- **IndexedDB persistence**: File storage with thumbnail caching
+- **Preview system**: Tools can preview results (e.g., Split → Viewer → back to Split) without context pollution
+
+**Critical**: All file operations go through FileContext. Don't bypass with direct file handling.
+
+#### Processing Services
+- **enhancedPDFProcessingService**: Background PDF parsing and manipulation
+- **thumbnailGenerationService**: Web Worker-based with main-thread fallback
+- **fileStorage**: IndexedDB with LRU cache management
+
+#### Memory Management Strategy
+**Why manual cleanup exists**: Large PDFs (up to 100GB+) through multiple tools accumulate:
+- PDF.js documents that need explicit .destroy() calls
+- Blob URLs from tool outputs that need revocation
+- Web Workers that need termination
+Without cleanup: browser crashes with memory leaks.
+
+#### Tool Development
+
+**Architecture**: Modular hook-based system with clear separation of concerns:
+
+- **useToolOperation** (`frontend/src/core/hooks/tools/shared/useToolOperation.ts`): Main orchestrator hook
+  - Coordinates all tool operations with consistent interface
+  - Integrates with FileContext for operation tracking
+  - Handles validation, error handling, and UI state management
+
+- **Supporting Hooks**:
+  - **useToolState**: UI state management (loading, progress, error, files)
+  - **useToolApiCalls**: HTTP requests and file processing
+  - **useToolResources**: Blob URLs, thumbnails, ZIP downloads
+
+- **Utilities**:
+  - **toolErrorHandler**: Standardized error extraction and i18n support
+  - **toolResponseProcessor**: API response handling (single/zip/custom)
+  - **toolOperationTracker**: FileContext integration utilities
+
+**Three Tool Patterns**:
+
+**Pattern 1: Single-File Tools** (Individual processing)
+- Backend processes one file per API call
+- Set `multiFileEndpoint: false`
+- Examples: Compress, Rotate
+```typescript
+return useToolOperation({
+  operationType: 'compress',
+  endpoint: '/api/v1/misc/compress-pdf',
+  buildFormData: (params, file: File) => { /* single file */ },
+  multiFileEndpoint: false,
+});
+```
+
+**Pattern 2: Multi-File Tools** (Batch processing)
+- Backend accepts `MultipartFile[]` arrays in single API call
+- Set `multiFileEndpoint: true`
+- Examples: Split, Merge, Overlay
+```typescript
+return useToolOperation({
+  operationType: 'split',
+  endpoint: '/api/v1/general/split-pages',
+  buildFormData: (params, files: File[]) => { /* all files */ },
+  multiFileEndpoint: true,
+  filePrefix: 'split_',
+});
+```
+
+**Pattern 3: Complex Tools** (Custom processing)
+- Tools with complex routing logic or non-standard processing
+- Provide `customProcessor` for full control
+- Examples: Convert, OCR
+```typescript
+return useToolOperation({
+  operationType: 'convert',
+  customProcessor: async (params, files) => { /* custom logic */ },
+});
+```
+
+**Benefits**:
+- **No Timeouts**: Operations run until completion (supports 100GB+ files)
+- **Consistent**: All tools follow same pattern and interface
+- **Maintainable**: Single responsibility hooks, easy to test and modify
+- **i18n Ready**: Built-in internationalization support
+- **Type Safe**: Full TypeScript support with generic interfaces
+- **Memory Safe**: Automatic resource cleanup and blob URL management
+
+## Architecture Overview
+
+### Project Structure
+- **Backend**: Spring Boot application
+- **Frontend**: React-based SPA in `/frontend` directory
+  - **File Storage**: IndexedDB for client-side file persistence and thumbnails
+  - **Internationalization**: JSON-based translations (converted from backend .properties)
+- **PDF Processing**: PDFBox for core PDF operations, LibreOffice for conversions, PDF.js for client-side rendering
+- **Security**: Spring Security with optional authentication (controlled by `DOCKER_ENABLE_SECURITY`)
+- **Configuration**: YAML-based configuration with environment variable overrides
+
+### Controller Architecture
+- **API Controllers** (`src/main/java/.../controller/api/`): REST endpoints for PDF operations
+  - Organized by function: converters, security, misc, pipeline
+  - Follow pattern: `@RestController` + `@RequestMapping("/api/v1/...")`
+
+### Key Components
+- **SPDFApplication.java**: Main application class with desktop UI and browser launching logic
+- **ConfigInitializer**: Handles runtime configuration and settings files
+- **Pipeline System**: Automated PDF processing workflows via `PipelineController`
+- **Security Layer**: Authentication, authorization, and user management (when enabled)
+
+### Frontend Directory Structure
+The frontend is organized with a clear separation of concerns:
+
+- **`frontend/src/core/`**: Main application code (shared, production-ready components)
+  - **`core/components/`**: React components organized by feature
+    - `core/components/tools/`: Individual PDF tool implementations
+    - `core/components/viewer/`: PDF viewer components
+    - `core/components/pageEditor/`: Page manipulation UI
+    - `core/components/tooltips/`: Help tooltips for tools
+    - `core/components/shared/`: Reusable UI components
+  - **`core/contexts/`**: React Context providers
+    - `FileContext.tsx`: Central file state management
+    - `file/`: File reducer and selectors
+    - `toolWorkflow/`: Tool workflow state
+  - **`core/hooks/`**: Custom React hooks
+    - `hooks/tools/`: Tool-specific operation hooks (one directory per tool)
+    - `hooks/tools/shared/`: Shared hook utilities (useToolOperation, etc.)
+  - **`core/constants/`**: Application constants and configuration
+  - **`core/data/`**: Static data (tool taxonomy, etc.)
+  - **`core/services/`**: Business logic services (PDF processing, storage, etc.)
+
+- **`frontend/src/desktop/`**: Desktop-specific (Tauri) code
+- **`frontend/src/proprietary/`**: Proprietary/licensed features
+- **`frontend/src-tauri/`**: Tauri (Rust) native desktop application code
+- **`frontend/public/`**: Static assets served directly
+  - `public/locales/`: Translation JSON files
+
+### Component Architecture
+- **Static Assets**: CSS, JS, and resources in `src/main/resources/static/` (legacy) + `frontend/public/` (modern)
+- **Internationalization**:
+  - Backend: `messages_*.properties` files
+  - Frontend: JSON files in `frontend/public/locales/` (converted from .properties)
+  - Conversion Script: `scripts/convert_properties_to_json.py`
+
+### Configuration Modes
+- **Ultra-lite**: Basic PDF operations only
+- **Standard**: Full feature set
+- **Fat**: Pre-downloaded dependencies for air-gapped environments
+- **Security Mode**: Adds authentication, user management, and enterprise features
+
+### Testing Strategy
+- **Integration Tests**: Cucumber tests in `testing/cucumber/`
+- **Docker Testing**: `test.sh` validates all Docker variants
+- **Manual Testing**: No unit tests currently - relies on UI and API testing
+
+## Development Workflow
+
+1. **Local Development**:
+   - Backend: `./gradlew bootRun` (runs on localhost:8080)
+   - Frontend: `cd frontend && npm run dev` (runs on localhost:5173, proxies to backend)
+2. **Docker Testing**: Use `./test.sh` before submitting PRs
+3. **Code Style**: Spotless enforces Google Java Format automatically
+4. **Translations**:
+   - Backend: Use helper scripts in `/scripts` for multi-language updates
+   - Frontend: Update JSON files in `frontend/public/locales/` or use conversion script
+5. **Documentation**: API docs auto-generated and available at `/swagger-ui/index.html`
+
+## Frontend Architecture Status
+
+- **Core Status**: React SPA architecture complete with multi-tool workflow support
+- **State Management**: FileContext handles all file operations and tool navigation
+- **File Processing**: Production-ready with memory management for large PDF workflows (up to 100GB+)
+- **Tool Integration**: Modular hook architecture with `useToolOperation` orchestrator
+  - Individual hooks: `useToolState`, `useToolApiCalls`, `useToolResources`
+  - Utilities: `toolErrorHandler`, `toolResponseProcessor`, `toolOperationTracker`
+  - Pattern: Each tool creates focused operation hook, UI consumes state/actions
+- **Preview System**: Tool results can be previewed without polluting file context (Split tool example)
+- **Performance**: Web Worker thumbnails, IndexedDB persistence, background processing
+
+## Translation Rules
+
+- **CRITICAL**: Always update translations in `en-GB` only, never `en-US`
+- Translation files are located in `frontend/public/locales/`
+
+## Important Notes
+
+- **Java Version**: Minimum JDK 21, supports and recommends JDK 25
+- **Lombok**: Used extensively - ensure IDE plugin is installed
+- **File Persistence**:
+  - **Backend**: Designed to be stateless - files are processed in memory/temp locations only
+  - **Frontend**: Uses IndexedDB for client-side file storage and caching (with thumbnails)
+- **Security**: When `DOCKER_ENABLE_SECURITY=false`, security-related classes are excluded from compilation
+- **Import Paths**: ALWAYS use `@app/*` for imports - never use `@core/*` or `@proprietary/*` unless explicitly wrapping/extending a lower layer
+- **FileContext**: All file operations MUST go through FileContext - never bypass with direct File handling
+- **Memory Management**: Manual cleanup required for PDF.js documents and blob URLs - don't remove cleanup code
+- **Tool Development**: New tools should follow `useToolOperation` hook pattern (see `useCompressOperation.ts`)
+- **Performance Target**: Must handle PDFs up to 100GB+ without browser crashes
+- **Preview System**: Tools can preview results without polluting main file context (see Split tool implementation)
+- **Adding Tools**: See `ADDING_TOOLS.md` for complete guide to creating new PDF tools
+
+## Communication Style
+- Be direct and to the point
+- No apologies or conversational filler
+- Answer questions directly without preamble
+- Explain reasoning concisely when asked
+- Avoid unnecessary elaboration
+
+## Decision Making
+- Ask clarifying questions before making assumptions
+- Stop and ask when uncertain about project-specific details
+- Confirm approach before making structural changes
+- Request guidance on preferences (cross-platform vs specific tools, etc.)
+- Verify understanding of requirements before proceeding
@@ -1,225 +0,0 @@
-# CLAUDE.md
-
-This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
-
-## Common Development Commands
-
-### Build and Test
- **Build project**: `./gradlew clean build`
- **Run locally**: `./gradlew bootRun`
- **Full test suite**: `./test.sh` (builds all Docker variants and runs comprehensive tests)
- **Code formatting**: `./gradlew spotlessApply` (runs automatically before compilation)
-
-### Docker Development
- **Build ultra-lite**: `docker build -t stirlingtools/stirling-pdf:latest-ultra-lite -f ./Dockerfile.ultra-lite .`
- **Build standard**: `docker build -t stirlingtools/stirling-pdf:latest -f ./Dockerfile .`
- **Build fat version**: `docker build -t stirlingtools/stirling-pdf:latest-fat -f ./Dockerfile.fat .`
- **Example compose files**: Located in `exampleYmlFiles/` directory
-
-### Security Mode Development
-Set `DOCKER_ENABLE_SECURITY=true` environment variable to enable security features during development. This is required for testing the full version locally.
-
-### Frontend Development
- **Frontend dev server**: `cd frontend && npm run dev` (requires backend on localhost:8080)
- **Tech Stack**: Vite + React + TypeScript + Mantine UI + TailwindCSS
- **Proxy Configuration**: Vite proxies `/api/*` calls to backend (localhost:8080)
- **Build Process**: DO NOT run build scripts manually - builds are handled by CI/CD pipelines
- **Package Installation**: DO NOT run npm install commands - package management handled separately
- **Deployment Options**:
-  - **Desktop App**: `npm run tauri-build` (native desktop application)
-  - **Web Server**: `npm run build` then serve dist/ folder
-  - **Development**: `npm run tauri-dev` for desktop dev mode
-
-#### Multi-Tool Workflow Architecture
-Frontend designed for **stateful document processing**:
- Users upload PDFs once, then chain tools (split → merge → compress → view)
- File state and processing results persist across tool switches
- No file reloading between tools - performance critical for large PDFs (up to 100GB+)
-
-#### FileContext - Central State Management
-**Location**: `src/contexts/FileContext.tsx`
- **Active files**: Currently loaded PDFs and their variants
- **Tool navigation**: Current mode (viewer/pageEditor/fileEditor/toolName)
- **Memory management**: PDF document cleanup, blob URL lifecycle, Web Worker management
- **IndexedDB persistence**: File storage with thumbnail caching
- **Preview system**: Tools can preview results (e.g., Split → Viewer → back to Split) without context pollution
-
-**Critical**: All file operations go through FileContext. Don't bypass with direct file handling.
-
-#### Processing Services
- **enhancedPDFProcessingService**: Background PDF parsing and manipulation
- **thumbnailGenerationService**: Web Worker-based with main-thread fallback
- **fileStorage**: IndexedDB with LRU cache management
-
-#### Memory Management Strategy
-**Why manual cleanup exists**: Large PDFs (up to 100GB+) through multiple tools accumulate:
- PDF.js documents that need explicit .destroy() calls
- Blob URLs from tool outputs that need revocation
- Web Workers that need termination
-Without cleanup: browser crashes with memory leaks.
-
-#### Tool Development
-
-**Architecture**: Modular hook-based system with clear separation of concerns:
-
- **useToolOperation** (`frontend/src/hooks/tools/shared/useToolOperation.ts`): Main orchestrator hook
-  - Coordinates all tool operations with consistent interface
-  - Integrates with FileContext for operation tracking
-  - Handles validation, error handling, and UI state management
-
- **Supporting Hooks**:
-  - **useToolState**: UI state management (loading, progress, error, files)
-  - **useToolApiCalls**: HTTP requests and file processing
-  - **useToolResources**: Blob URLs, thumbnails, ZIP downloads
-
- **Utilities**:
-  - **toolErrorHandler**: Standardized error extraction and i18n support
-  - **toolResponseProcessor**: API response handling (single/zip/custom)
-  - **toolOperationTracker**: FileContext integration utilities
-
-**Three Tool Patterns**:
-
-**Pattern 1: Single-File Tools** (Individual processing)
- Backend processes one file per API call
- Set `multiFileEndpoint: false`
- Examples: Compress, Rotate
-```typescript
-return useToolOperation({
-  operationType: 'compress',
-  endpoint: '/api/v1/misc/compress-pdf',
-  buildFormData: (params, file: File) => { /* single file */ },
-  multiFileEndpoint: false,
-});
-```
-
-**Pattern 2: Multi-File Tools** (Batch processing)
- Backend accepts `MultipartFile[]` arrays in single API call
- Set `multiFileEndpoint: true`
- Examples: Split, Merge, Overlay
-```typescript
-return useToolOperation({
-  operationType: 'split',
-  endpoint: '/api/v1/general/split-pages',
-  buildFormData: (params, files: File[]) => { /* all files */ },
-  multiFileEndpoint: true,
-  filePrefix: 'split_',
-});
-```
-
-**Pattern 3: Complex Tools** (Custom processing)
- Tools with complex routing logic or non-standard processing
- Provide `customProcessor` for full control
- Examples: Convert, OCR
-```typescript
-return useToolOperation({
-  operationType: 'convert',
-  customProcessor: async (params, files) => { /* custom logic */ },
-});
-```
-
-**Benefits**:
- **No Timeouts**: Operations run until completion (supports 100GB+ files)
- **Consistent**: All tools follow same pattern and interface
- **Maintainable**: Single responsibility hooks, easy to test and modify
- **i18n Ready**: Built-in internationalization support
- **Type Safe**: Full TypeScript support with generic interfaces
- **Memory Safe**: Automatic resource cleanup and blob URL management
-
-## Architecture Overview
-
-### Project Structure
- **Backend**: Spring Boot application
- **Frontend**: React-based SPA in `/frontend` directory
-  - **File Storage**: IndexedDB for client-side file persistence and thumbnails
-  - **Internationalization**: JSON-based translations (converted from backend .properties)
- **PDF Processing**: PDFBox for core PDF operations, LibreOffice for conversions, PDF.js for client-side rendering
- **Security**: Spring Security with optional authentication (controlled by `DOCKER_ENABLE_SECURITY`)
- **Configuration**: YAML-based configuration with environment variable overrides
-
-### Controller Architecture
- **API Controllers** (`src/main/java/.../controller/api/`): REST endpoints for PDF operations
-  - Organized by function: converters, security, misc, pipeline
-  - Follow pattern: `@RestController` + `@RequestMapping("/api/v1/...")`
-
-### Key Components
- **SPDFApplication.java**: Main application class with desktop UI and browser launching logic
- **ConfigInitializer**: Handles runtime configuration and settings files
- **Pipeline System**: Automated PDF processing workflows via `PipelineController`
- **Security Layer**: Authentication, authorization, and user management (when enabled)
-
-### Component Architecture
- **React Components**: Located in `frontend/src/components/` and `frontend/src/tools/`
- **Static Assets**: CSS, JS, and resources in `src/main/resources/static/` (legacy) + `frontend/public/` (modern)
- **Internationalization**:
-  - Backend: `messages_*.properties` files
-  - Frontend: JSON files in `frontend/public/locales/` (converted from .properties)
-  - Conversion Script: `scripts/convert_properties_to_json.py`
-
-### Configuration Modes
- **Ultra-lite**: Basic PDF operations only
- **Standard**: Full feature set
- **Fat**: Pre-downloaded dependencies for air-gapped environments
- **Security Mode**: Adds authentication, user management, and enterprise features
-
-### Testing Strategy
- **Integration Tests**: Cucumber tests in `testing/cucumber/`
- **Docker Testing**: `test.sh` validates all Docker variants
- **Manual Testing**: No unit tests currently - relies on UI and API testing
-
-## Development Workflow
-
-1. **Local Development**:
-   - Backend: `./gradlew bootRun` (runs on localhost:8080)
-   - Frontend: `cd frontend && npm run dev` (runs on localhost:5173, proxies to backend)
-2. **Docker Testing**: Use `./test.sh` before submitting PRs
-3. **Code Style**: Spotless enforces Google Java Format automatically
-4. **Translations**:
-   - Backend: Use helper scripts in `/scripts` for multi-language updates
-   - Frontend: Update JSON files in `frontend/public/locales/` or use conversion script
-5. **Documentation**: API docs auto-generated and available at `/swagger-ui/index.html`
-
-## Frontend Architecture Status
-
- **Core Status**: React SPA architecture complete with multi-tool workflow support
- **State Management**: FileContext handles all file operations and tool navigation
- **File Processing**: Production-ready with memory management for large PDF workflows (up to 100GB+)
- **Tool Integration**: Modular hook architecture with `useToolOperation` orchestrator
-  - Individual hooks: `useToolState`, `useToolApiCalls`, `useToolResources`
-  - Utilities: `toolErrorHandler`, `toolResponseProcessor`, `toolOperationTracker`
-  - Pattern: Each tool creates focused operation hook, UI consumes state/actions
- **Preview System**: Tool results can be previewed without polluting file context (Split tool example)
- **Performance**: Web Worker thumbnails, IndexedDB persistence, background processing
-
-## Translation Rules
-
- **CRITICAL**: Always update translations in `en-GB` only, never `en-US`
- Translation files are located in `frontend/public/locales/`
-
-## Important Notes
-
- **Java Version**: Minimum JDK 17, supports and recommends JDK 21
- **Lombok**: Used extensively - ensure IDE plugin is installed
- **File Persistence**:
-  - **Backend**: Designed to be stateless - files are processed in memory/temp locations only
-  - **Frontend**: Uses IndexedDB for client-side file storage and caching (with thumbnails)
- **Security**: When `DOCKER_ENABLE_SECURITY=false`, security-related classes are excluded from compilation
- **FileContext**: All file operations MUST go through FileContext - never bypass with direct File handling
- **Memory Management**: Manual cleanup required for PDF.js documents and blob URLs - don't remove cleanup code
- **Tool Development**: New tools should follow `useToolOperation` hook pattern (see `useCompressOperation.ts`)
- **Performance Target**: Must handle PDFs up to 100GB+ without browser crashes
- **Preview System**: Tools can preview results without polluting main file context (see Split tool implementation)
- **Adding Tools**: See `ADDING_TOOLS.md` for complete guide to creating new PDF tools
-
-## Communication Style
- Be direct and to the point
- No apologies or conversational filler
- Answer questions directly without preamble
- Explain reasoning concisely when asked
- Avoid unnecessary elaboration
-
-## Decision Making
- Ask clarifying questions before making assumptions
- Stop and ask when uncertain about project-specific details
- Confirm approach before making structural changes
- Request guidance on preferences (cross-platform vs specific tools, etc.)
- Verify understanding of requirements before proceeding
@@ -0,0 +1 @@
+AGENTS.md
@@ -11,7 +11,7 @@ This guide focuses on developing for Stirling 2.0, including both the React fron
 **Stirling 2.0** is built using:

 **Backend:**
- Spring Boot (Java 17+, JDK 21 recommended)
+- Spring Boot (Java 21+, JDK 25 recommended)
 - PDFBox for core PDF operations
 - LibreOffice for document conversions
 - qpdf for PDF optimization
@@ -44,7 +44,7 @@ This guide focuses on developing for Stirling 2.0, including both the React fron

 - Docker
 - Git
- Java JDK 17 or later (JDK 21 recommended)
+- Java JDK 21 or later (JDK 25 recommended)
 - Node.js 18+ and npm (required for frontend development)
 - Gradle 7.0 or later (Included within the repo)
 - Rust and Cargo (required for Tauri desktop app development)
@@ -59,7 +59,7 @@ This guide focuses on developing for Stirling 2.0, including both the React fron
   cd Stirling-PDF
   ```

-2. Install Docker and JDK17 if not already installed.
+2. Install Docker and JDK 21 (or JDK 25 recommended) if not already installed.

 3. Install a recommended Java IDE such as Eclipse, IntelliJ, or VSCode
   1. Only VSCode
@@ -6,10 +6,14 @@ Portions of this software are licensed as follows:

 * All content that resides under the "app/proprietary/" directory of this repository,
 if that directory exists, is licensed under the license defined in "app/proprietary/LICENSE".
+* All content that resides under the "engine/" directory of this repository,
+if that directory exists, is licensed under the license defined in "engine/LICENSE".
 * All content that resides under the "frontend/src/proprietary/" directory of this repository,
 if that directory exists, is licensed under the license defined in "frontend/src/proprietary/LICENSE".
 * All content that resides under the "frontend/src/desktop/" directory of this repository,
 if that directory exists, is licensed under the license defined in "frontend/src/desktop/LICENSE".
+* All content that resides under the "frontend/src/saas/" directory of this repository,
+if that directory exists, is licensed under the license defined in "frontend/src/saas/LICENSE".
 * Content outside of the above mentioned directories or restrictions above is
 available under the MIT License as defined below.

@@ -5,10 +5,10 @@ bootRun {
 spotless {
    java {
        target 'src/**/java/**/*.java'
+        targetExclude 'src/main/java/org/apache/**'
        googleJavaFormat(googleJavaFormatVersion).aosp().reorderImports(false)

        importOrder("java", "javax", "org", "com", "net", "io", "jakarta", "lombok", "me", "stirling")
-        toggleOffOn()
        trimTrailingWhitespace()
        leadingTabsToSpaces()
        endWithNewline()
@@ -27,9 +27,10 @@ spotless {
    }
 }
 dependencies {
-    api 'org.springframework.boot:spring-boot-starter-web'
-    api 'org.springframework.boot:spring-boot-starter-aop'
-    api 'com.googlecode.owasp-java-html-sanitizer:owasp-java-html-sanitizer:20240325.1'
+    api 'com.google.guava:guava:33.4.8-jre'
+    api 'org.springframework.boot:spring-boot-starter-webmvc'
+    api 'org.springframework.boot:spring-boot-starter-aspectj'
+    api 'com.googlecode.owasp-java-html-sanitizer:owasp-java-html-sanitizer:20260102.1'
    api 'com.fathzer:javaluator:3.0.6'
    api 'com.posthog.java:posthog:1.2.0'
    api 'org.apache.commons:commons-lang3:3.20.0'
@@ -39,10 +40,10 @@ dependencies {
    api "org.apache.pdfbox:pdfbox-io:$pdfboxVersion"
    api "org.apache.pdfbox:xmpbox:$pdfboxVersion"
    api "org.apache.pdfbox:preflight:$pdfboxVersion"
-    api 'com.github.junrar:junrar:7.5.7' // RAR archive support for CBR files
+    api 'com.github.junrar:junrar:7.5.8' // RAR archive support for CBR files
    api 'jakarta.servlet:jakarta.servlet-api:6.1.0'
    api 'org.snakeyaml:snakeyaml-engine:3.0.1'
-    api "org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.15"
+    api "org.springdoc:springdoc-openapi-starter-webmvc-ui:3.0.1"
    // Simple Java Mail for EML/MSG parsing (replaces direct Angus Mail usage)
    api 'org.simplejavamail:simple-java-mail:8.12.6'
    api 'org.simplejavamail:outlook-module:8.12.6' // MSG file support
@@ -103,8 +103,9 @@ public class EndpointConfiguration {

        // Rule 2: Functional-group override - check if endpoint belongs to any disabled functional
        // group
-        for (String group : endpointGroups.keySet()) {
-            if (disabledGroups.contains(group) && endpointGroups.get(group).contains(endpoint)) {
+        for (Map.Entry<String, Set<String>> entry : endpointGroups.entrySet()) {
+            String group = entry.getKey();
+            if (disabledGroups.contains(group) && entry.getValue().contains(endpoint)) {
                // Skip tool groups (qpdf, OCRmyPDF, Ghostscript, LibreOffice, etc.)
                if (!isToolGroup(group)) {
                    log.debug(
@@ -131,10 +132,11 @@ public class EndpointConfiguration {

        // Rule 4: Single-dependency check - if no alternatives defined, check if endpoint belongs
        // to any disabled tool groups
-        for (String group : endpointGroups.keySet()) {
+        for (Map.Entry<String, Set<String>> entry : endpointGroups.entrySet()) {
+            String group = entry.getKey();
            if (isToolGroup(group)
                    && disabledGroups.contains(group)
-                    && endpointGroups.get(group).contains(endpoint)) {
+                    && entry.getValue().contains(endpoint)) {
                log.debug(
                        "isEndpointEnabled('{}') -> false (single tool group '{}' disabled, no alternatives)",
                        original,
@@ -371,7 +373,6 @@ public class EndpointConfiguration {
        addEndpointToGroup("Other", REMOVE_BLANKS);
        addEndpointToGroup("Other", "remove-annotations");
        addEndpointToGroup("Other", "get-info-on-pdf");
-        addEndpointToGroup("Other", "remove-image-pdf");
        addEndpointToGroup("Other", "add-attachments");
        addEndpointToGroup("Other", "replace-invert-pdf");
        addEndpointToGroup("Other", "edit-table-of-contents");
@@ -391,13 +392,24 @@ public class EndpointConfiguration {
        addEndpointToGroup("Advance", "extract-image-scans");
        addEndpointToGroup("Advance", "repair");
        addEndpointToGroup("Advance", "auto-rename");
-        addEndpointToGroup("Advance", "handleData");
        addEndpointToGroup("Advance", "scanner-effect");
-        addEndpointToGroup("Advance", "show-javascript");
        addEndpointToGroup("Advance", "overlay-pdf");
        // Backend-only endpoints
        addEndpointToGroup("Advance", "adjust-contrast");
-        addEndpointToGroup("Advance", "pipeline");
+
+        // Adding endpoints to "Automation" group
+        addEndpointToGroup("Automation", "handleData");
+        addEndpointToGroup("Automation", "automate"); // Alias for handleData (user-friendly name)
+        addEndpointToGroup("Automation", "pipeline");
+
+        // Adding endpoints to "DeveloperTools" group
+        addEndpointToGroup("DeveloperTools", "show-javascript");
+
+        // Adding endpoints to "DeveloperDocs" group (fake endpoints for link-only tools)
+        addEndpointToGroup("DeveloperDocs", "dev-api-docs");
+        addEndpointToGroup("DeveloperDocs", "dev-folder-scanning-docs");
+        addEndpointToGroup("DeveloperDocs", "dev-sso-guide-docs");
+        addEndpointToGroup("DeveloperDocs", "dev-airgapped-docs");

        // CLI
        addEndpointToGroup("CLI", "compress-pdf");
@@ -475,7 +487,6 @@ public class EndpointConfiguration {
        addEndpointToGroup("Java", REMOVE_BLANKS);
        addEndpointToGroup("Java", "remove-annotations");
        addEndpointToGroup("Java", "pdf-to-text");
-        addEndpointToGroup("Java", "remove-image-pdf");
        addEndpointToGroup("Java", "pdf-to-markdown");
        addEndpointToGroup("Java", "add-attachments");
        addEndpointToGroup("Java", "compress-pdf");
@@ -595,6 +606,12 @@ public class EndpointConfiguration {
        return endpointGroups.getOrDefault(group, new HashSet<>());
    }

+    public Set<String> getAllEndpoints() {
+        return endpointGroups.values().stream()
+                .flatMap(Set::stream)
+                .collect(java.util.stream.Collectors.toSet());
+    }
+
    private boolean isToolGroup(String group) {
        return "qpdf".equals(group)
                || "OCRmyPDF".equals(group)
@@ -628,8 +645,9 @@ public class EndpointConfiguration {
        }

        // Check if endpoint belongs to any disabled functional group
-        for (String group : endpointGroups.keySet()) {
-            if (disabledGroups.contains(group) && endpointGroups.get(group).contains(endpoint)) {
+        for (Map.Entry<String, Set<String>> entry : endpointGroups.entrySet()) {
+            String group = entry.getKey();
+            if (disabledGroups.contains(group) && entry.getValue().contains(endpoint)) {
                if (!isToolGroup(group)) {
                    return false;
                }
@@ -2,12 +2,14 @@ package stirling.software.common.aop;

 import java.io.IOException;
 import java.time.Duration;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.TimeUnit;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Supplier;

 import org.aspectj.lang.ProceedingJoinPoint;
 import org.aspectj.lang.annotation.*;
+import org.slf4j.MDC;
 import org.springframework.core.annotation.Order;
 import org.springframework.stereotype.Component;
 import org.springframework.web.multipart.MultipartFile;
@@ -26,7 +28,7 @@ import stirling.software.common.service.JobExecutorService;
@Component
@RequiredArgsConstructor
@Slf4j
-@Order(0) // Highest precedence - executes before audit aspects
+@Order(20) // Lower precedence - executes AFTER audit aspects populate MDC
 public class AutoJobAspect {

    private static final Duration RETRY_BASE_DELAY = Duration.ofMillis(100);
@@ -70,26 +72,29 @@ public class AutoJobAspect {
            // No retries needed, simple execution
            return jobExecutorService.runJobGeneric(
                    async,
-                    () -> {
-                        try {
-                            // Note: Progress tracking is handled in TaskManager/JobExecutorService
-                            // The trackProgress flag controls whether detailed progress is stored
-                            // for REST API queries, not WebSocket notifications
-                            return joinPoint.proceed(args);
-                        } catch (Throwable ex) {
-                            log.error(
-                                    "AutoJobAspect caught exception during job execution: {}",
-                                    ex.getMessage(),
-                                    ex);
-                            // Rethrow RuntimeException as-is to preserve exception type
-                            if (ex instanceof RuntimeException) {
-                                throw (RuntimeException) ex;
-                            }
-                            // Wrap checked exceptions - GlobalExceptionHandler will unwrap
-                            // BaseAppException
-                            throw new RuntimeException(ex);
-                        }
-                    },
+                    wrapWithMDC(
+                            () -> {
+                                try {
+                                    // Note: Progress tracking is handled in
+                                    // TaskManager/JobExecutorService
+                                    // The trackProgress flag controls whether detailed progress is
+                                    // stored
+                                    // for REST API queries, not WebSocket notifications
+                                    return joinPoint.proceed(args);
+                                } catch (Throwable ex) {
+                                    log.error(
+                                            "AutoJobAspect caught exception during job execution: {}",
+                                            ex.getMessage(),
+                                            ex);
+                                    // Rethrow RuntimeException as-is to preserve exception type
+                                    if (ex instanceof RuntimeException) {
+                                        throw (RuntimeException) ex;
+                                    }
+                                    // Wrap checked exceptions - GlobalExceptionHandler will unwrap
+                                    // BaseAppException
+                                    throw new RuntimeException(ex);
+                                }
+                            }),
                    timeout,
                    queueable,
                    resourceWeight);
@@ -123,114 +128,108 @@ public class AutoJobAspect {

        return jobExecutorService.runJobGeneric(
                async,
-                () -> {
-                    // Use iterative approach instead of recursion to avoid stack overflow
-                    Throwable lastException = null;
+                wrapWithMDC(
+                        () -> {
+                            // Use iterative approach instead of recursion to avoid stack overflow
+                            Throwable lastException = null;

-                    // Attempt counter starts at 1 for first try
-                    for (int currentAttempt = 1; currentAttempt <= maxRetries; currentAttempt++) {
-                        try {
-                            if (trackProgress && async) {
-                                // Get jobId for progress tracking in TaskManager
-                                // This enables REST API progress queries, not WebSocket
-                                if (jobIdRef.get() == null) {
-                                    jobIdRef.set(getJobIdFromContext());
-                                }
-                                String jobId = jobIdRef.get();
-                                if (jobId != null) {
-                                    log.debug(
-                                            "Tracking progress for job {} (attempt {}/{})",
-                                            jobId,
+                            // Attempt counter starts at 1 for first try
+                            for (int currentAttempt = 1;
+                                    currentAttempt <= maxRetries;
+                                    currentAttempt++) {
+                                try {
+                                    if (trackProgress && async) {
+                                        // Get jobId for progress tracking in TaskManager
+                                        // This enables REST API progress queries, not WebSocket
+                                        if (jobIdRef.get() == null) {
+                                            jobIdRef.set(getJobIdFromContext());
+                                        }
+                                        String jobId = jobIdRef.get();
+                                        if (jobId != null) {
+                                            log.debug(
+                                                    "Tracking progress for job {} (attempt {}/{})",
+                                                    jobId,
+                                                    currentAttempt,
+                                                    maxRetries);
+                                            // Progress is tracked in TaskManager for REST API
+                                            // access
+                                            // No WebSocket notifications sent here
+                                        }
+                                    }
+
+                                    // Attempt to execute the operation
+                                    return joinPoint.proceed(args);
+
+                                } catch (Throwable ex) {
+                                    lastException = ex;
+                                    log.error(
+                                            "AutoJobAspect caught exception during job execution (attempt"
+                                                    + " {}/{}): {}",
                                            currentAttempt,
-                                            maxRetries);
-                                    // Progress is tracked in TaskManager for REST API access
-                                    // No WebSocket notifications sent here
-                                }
-                            }
+                                            maxRetries,
+                                            ex.getMessage(),
+                                            ex);

-                            // Attempt to execute the operation
-                            return joinPoint.proceed(args);
+                                    // Check if we should retry
+                                    if (currentAttempt < maxRetries) {
+                                        log.info(
+                                                "Retrying operation, attempt {}/{}",
+                                                currentAttempt + 1,
+                                                maxRetries);

-                        } catch (Throwable ex) {
-                            lastException = ex;
-                            log.error(
-                                    "AutoJobAspect caught exception during job execution (attempt"
-                                            + " {}/{}): {}",
-                                    currentAttempt,
-                                    maxRetries,
-                                    ex.getMessage(),
-                                    ex);
+                                        if (trackProgress && async) {
+                                            String jobId = jobIdRef.get();
+                                            if (jobId != null) {
+                                                log.debug(
+                                                        "Recording retry attempt for job {} in TaskManager",
+                                                        jobId);
+                                                // Retry info is tracked in TaskManager for REST API
+                                                // access
+                                            }
+                                        }

-                            // Check if we should retry
-                            if (currentAttempt < maxRetries) {
-                                log.info(
-                                        "Retrying operation, attempt {}/{}",
-                                        currentAttempt + 1,
-                                        maxRetries);
+                                        // Use sleep for retry delay
+                                        // For sync jobs, both sleep and async are blocking at this
+                                        // point
+                                        // For async jobs, the delay occurs in the executor thread
+                                        long delayMs = RETRY_BASE_DELAY.toMillis() * currentAttempt;

-                                if (trackProgress && async) {
-                                    String jobId = jobIdRef.get();
-                                    if (jobId != null) {
-                                        log.debug(
-                                                "Recording retry attempt for job {} in TaskManager",
-                                                jobId);
-                                        // Retry info is tracked in TaskManager for REST API access
+                                        try {
+                                            Thread.sleep(delayMs);
+                                        } catch (InterruptedException e) {
+                                            Thread.currentThread().interrupt();
+                                            log.debug(
+                                                    "Retry delay interrupted for attempt {}/{}",
+                                                    currentAttempt,
+                                                    maxRetries);
+                                            break;
+                                        }
+                                    } else {
+                                        // No more retries, we'll throw the exception after the loop
+                                        break;
                                    }
                                }
-
-                                // Use non-blocking delay for all retry attempts to avoid blocking
-                                // threads
-                                // For sync jobs this avoids starving the tomcat thread pool under
-                                // load
-                                long delayMs = RETRY_BASE_DELAY.toMillis() * currentAttempt;
-
-                                // Execute the retry after a delay through the JobExecutorService
-                                // rather than blocking the current thread with sleep
-                                CompletableFuture<Object> delayedRetry = new CompletableFuture<>();
-
-                                // Use a delayed executor for non-blocking delay
-                                CompletableFuture.delayedExecutor(delayMs, TimeUnit.MILLISECONDS)
-                                        .execute(
-                                                () -> {
-                                                    // Continue the retry loop in the next iteration
-                                                    // We can't return from here directly since
-                                                    // we're in a Runnable
-                                                    delayedRetry.complete(null);
-                                                });
-
-                                // Wait for the delay to complete before continuing
-                                try {
-                                    delayedRetry.join();
-                                } catch (Exception e) {
-                                    Thread.currentThread().interrupt();
-                                    break;
-                                }
-                            } else {
-                                // No more retries, we'll throw the exception after the loop
-                                break;
                            }
-                        }
-                    }

-                    // If we get here, all retries failed
-                    if (lastException != null) {
-                        // Rethrow RuntimeException as-is to preserve exception type
-                        if (lastException instanceof RuntimeException) {
-                            throw (RuntimeException) lastException;
-                        }
-                        // Wrap checked exceptions - GlobalExceptionHandler will unwrap
-                        // BaseAppException
-                        throw new RuntimeException(
-                                "Job failed after "
-                                        + maxRetries
-                                        + " attempts: "
-                                        + lastException.getMessage(),
-                                lastException);
-                    }
+                            // If we get here, all retries failed
+                            if (lastException != null) {
+                                // Rethrow RuntimeException as-is to preserve exception type
+                                if (lastException instanceof RuntimeException) {
+                                    throw (RuntimeException) lastException;
+                                }
+                                // Wrap checked exceptions - GlobalExceptionHandler will unwrap
+                                // BaseAppException
+                                throw new RuntimeException(
+                                        "Job failed after "
+                                                + maxRetries
+                                                + " attempts: "
+                                                + lastException.getMessage(),
+                                        lastException);
+                            }

-                    // This should never happen if lastException is properly tracked
-                    throw new RuntimeException("Job failed but no exception was recorded");
-                },
+                            // This should never happen if lastException is properly tracked
+                            throw new RuntimeException("Job failed but no exception was recorded");
+                        }),
                timeout,
                queueable,
                resourceWeight);
@@ -299,4 +298,32 @@ public class AutoJobAspect {
            return null;
        }
    }
+
+    /**
+     * Wraps a supplier to propagate MDC context to background threads. Captures MDC on request
+     * thread and restores it in the background thread. Ensures proper cleanup to prevent context
+     * leakage across jobs in thread pools.
+     */
+    private <T> Supplier<T> wrapWithMDC(Supplier<T> supplier) {
+        final Map<String, String> captured = MDC.getCopyOfContextMap();
+        return () -> {
+            final Map<String, String> previous = MDC.getCopyOfContextMap();
+            try {
+                // Set the captured context (or clear if none was captured)
+                if (captured != null) {
+                    MDC.setContextMap(new HashMap<>(captured));
+                } else {
+                    MDC.clear();
+                }
+                return supplier.get();
+            } finally {
+                // Restore previous state (or clear if there was none)
+                if (previous != null) {
+                    MDC.setContextMap(previous);
+                } else {
+                    MDC.clear();
+                }
+            }
+        };
+    }
 }
@@ -91,9 +91,9 @@ public class RuntimePathConfig {

        // Initialize Operation paths
        String defaultWeasyPrintPath = isDocker ? "/opt/venv/bin/weasyprint" : "weasyprint";
-        String defaultUnoConvertPath = isDocker ? "/opt/venv/bin/unoconvert" : "unoconvert";
+        String defaultUnoConvertPath = isDocker ? "/usr/local/bin/unoconvert" : "unoconvert";
        String defaultCalibrePath = isDocker ? "/opt/calibre/ebook-convert" : "ebook-convert";
-        String defaultOcrMyPdfPath = isDocker ? "/usr/bin/ocrmypdf" : "ocrmypdf";
+        String defaultOcrMyPdfPath = isDocker ? "/opt/venv/bin/ocrmypdf" : "ocrmypdf";
        String defaultSOfficePath = isDocker ? "/usr/bin/soffice" : "soffice";

        Operations operations = customPaths.getOperations();
@@ -0,0 +1,23 @@
+package stirling.software.common.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.TaskScheduler;
+import org.springframework.scheduling.concurrent.SimpleAsyncTaskScheduler;
+
+/**
+ * Configures the scheduler used by all {@code @Scheduled} methods. Uses virtual threads so that
+ * long-running scheduled tasks (e.g. cleanup, license checks, file monitoring) never block each
+ * other — each runs on its own lightweight virtual thread.
+ */
+@Configuration
+public class SchedulingConfig {
+
+    @Bean
+    public TaskScheduler taskScheduler() {
+        SimpleAsyncTaskScheduler scheduler = new SimpleAsyncTaskScheduler();
+        scheduler.setVirtualThreads(true);
+        scheduler.setThreadNamePrefix("scheduled-vt-");
+        return scheduler;
+    }
+}
@@ -0,0 +1,49 @@
+package stirling.software.common.constants;
+
+/**
+ * Centralized constants for JWT token management.
+ *
+ * <p>These defaults are used when configuration values are not explicitly set.
+ */
+public final class JwtConstants {
+
+    private JwtConstants() {
+        throw new UnsupportedOperationException("Utility class");
+    }
+
+    /** Default JWT access token lifetime in minutes (24 hours). */
+    public static final int DEFAULT_TOKEN_EXPIRY_MINUTES = 1440;
+
+    /** Default desktop client token lifetime in minutes (30 days). */
+    public static final int DEFAULT_DESKTOP_TOKEN_EXPIRY_MINUTES = 43200;
+
+    /**
+     * Default refresh grace period in minutes.
+     *
+     * <p>Allows refresh of expired tokens within this window after expiration.
+     */
+    public static final int DEFAULT_REFRESH_GRACE_MINUTES = 15;
+
+    /**
+     * Default allowed clock skew in seconds.
+     *
+     * <p>Tolerates small time drift between client and server clocks during validation.
+     */
+    public static final int DEFAULT_CLOCK_SKEW_SECONDS = 60;
+
+    /** Milliseconds per minute. */
+    public static final long MILLIS_PER_MINUTE = 60_000L;
+
+    /** Seconds per minute. */
+    public static final long SECONDS_PER_MINUTE = 60L;
+
+    /** JWT issuer identifier. */
+    public static final String ISSUER = "https://stirling.com";
+
+    /**
+     * Maximum refresh attempts allowed within the grace period window.
+     *
+     * <p>Prevents abuse of expired tokens by limiting refresh attempts.
+     */
+    public static final int MAX_REFRESH_ATTEMPTS_IN_GRACE = 3;
+}
@@ -39,6 +39,7 @@ import lombok.extern.slf4j.Slf4j;

 import stirling.software.common.configuration.InstallationPathConfig;
 import stirling.software.common.configuration.YamlPropertySourceFactory;
+import stirling.software.common.constants.JwtConstants;
 import stirling.software.common.model.exception.UnsupportedProviderException;
 import stirling.software.common.model.oauth2.GitHubProvider;
 import stirling.software.common.model.oauth2.GoogleProvider;
@@ -364,11 +365,11 @@ public class ApplicationProperties {
            }

            public boolean isSettingsValid() {
-                return !ValidationUtils.isStringEmpty(this.getIssuer())
-                        && !ValidationUtils.isStringEmpty(this.getClientId())
-                        && !ValidationUtils.isStringEmpty(this.getClientSecret())
-                        && !ValidationUtils.isCollectionEmpty(this.getScopes())
-                        && !ValidationUtils.isStringEmpty(this.getUseAsUsername());
+                return !ValidationUtils.isStringEmpty(this.issuer)
+                        && !ValidationUtils.isStringEmpty(this.clientId)
+                        && !ValidationUtils.isStringEmpty(this.clientSecret)
+                        && !ValidationUtils.isCollectionEmpty(this.scopes)
+                        && !ValidationUtils.isStringEmpty(this.useAsUsername);
            }

            @Data
@@ -393,12 +394,107 @@ public class ApplicationProperties {
            }
        }

+        /**
+         * JWT token configuration.
+         *
+         * <p><b>BREAKING CHANGE (v2.0):</b> Default token expiry increased from 12 hours (720
+         * minutes) to 24 hours (1440 minutes). If you require the previous behavior, explicitly set
+         * {@code tokenExpiryMinutes: 720} in your configuration.
+         */
        @Data
        public static class Jwt {
            private boolean enableKeystore = true;
            private boolean enableKeyRotation = false;
            private boolean enableKeyCleanup = true;
-            private int keyRetentionDays = 7;
+
+            /**
+             * JWT access token lifetime in minutes for web clients.
+             *
+             * <p>Default: {@value JwtConstants#DEFAULT_TOKEN_EXPIRY_MINUTES} minutes (24 hours).
+             *
+             * <p><b>BREAKING CHANGE:</b> Previously hardcoded to 720 minutes (12 hours). Now
+             * defaults to 1440 minutes (24 hours).
+             */
+            private int tokenExpiryMinutes = JwtConstants.DEFAULT_TOKEN_EXPIRY_MINUTES;
+
+            /**
+             * JWT access token lifetime in minutes for desktop clients (Tauri app).
+             *
+             * <p>Desktop clients are automatically detected via User-Agent header and receive
+             * longer-lived tokens because they run on personal devices with OS-level encrypted
+             * storage (macOS Keychain, Windows Credential Manager, Linux Secret Service).
+             *
+             * <p>This provides better UX (login once per month) while maintaining security through
+             * device encryption and secure storage, matching the behavior of popular desktop apps
+             * like Slack, Discord, VS Code, etc.
+             *
+             * <p>Default: 43200 minutes (30 days).
+             */
+            private int desktopTokenExpiryMinutes = 43200;
+
+            /**
+             * Allowed clock skew in seconds for JWT validation.
+             *
+             * <p>Tolerates small time drift between client and server clocks. Tokens that are
+             * slightly expired or slightly in the future (within this window) will still be
+             * accepted.
+             *
+             * <p>Default: {@value JwtConstants#DEFAULT_CLOCK_SKEW_SECONDS} seconds.
+             */
+            private int allowedClockSkewSeconds = JwtConstants.DEFAULT_CLOCK_SKEW_SECONDS;
+
+            /**
+             * Grace period in minutes for refreshing expired tokens.
+             *
+             * <p>Allows token refresh using an expired access token if the token expired within
+             * this many minutes. This provides better UX by allowing users to refresh slightly
+             * expired tokens without re-authentication.
+             *
+             * <p>Rate limiting is applied to prevent abuse of expired tokens within the grace
+             * window (max {@value JwtConstants#MAX_REFRESH_ATTEMPTS_IN_GRACE} attempts).
+             *
+             * <p>Default: {@value JwtConstants#DEFAULT_REFRESH_GRACE_MINUTES} minutes.
+             */
+            private int refreshGraceMinutes = JwtConstants.DEFAULT_REFRESH_GRACE_MINUTES;
+
+            /**
+             * Calculate number of days to retain old JWT signing keys.
+             *
+             * <p>Automatically calculated based on the longest token lifetime plus a proportional
+             * safety buffer. Keys must be retained for at least as long as the tokens they signed
+             * remain valid, otherwise token verification will fail.
+             *
+             * <p>Formula: ceil((maxTokenExpiry + 10% buffer + refreshGrace + clockSkew) / 1440)
+             *
+             * <p>The buffer includes:
+             *
+             * <ul>
+             *   <li>10% of token lifetime (scales with token duration)
+             *   <li>Token refresh grace period ({@link #refreshGraceMinutes})
+             *   <li>Clock skew tolerance ({@link #allowedClockSkewSeconds} converted to minutes)
+             * </ul>
+             *
+             * @return calculated key retention period in days
+             */
+            public int getKeyRetentionDays() {
+                final int MINUTES_PER_DAY = 1440;
+                final double BUFFER_PERCENTAGE = 0.10; // 10% buffer
+
+                int maxTokenExpiryMinutes = Math.max(tokenExpiryMinutes, desktopTokenExpiryMinutes);
+
+                // Add 10% buffer (scales with token lifetime)
+                int bufferMinutes = (int) Math.ceil(maxTokenExpiryMinutes * BUFFER_PERCENTAGE);
+
+                // Add refresh grace period
+                bufferMinutes += refreshGraceMinutes;
+
+                // Add clock skew (convert seconds to minutes, round up)
+                bufferMinutes += (int) Math.ceil(allowedClockSkewSeconds / 60.0);
+
+                // Total retention in minutes, convert to days (round up)
+                int totalMinutes = maxTokenExpiryMinutes + bufferMinutes;
+                return (int) Math.ceil(totalMinutes / (double) MINUTES_PER_DAY);
+            }
        }

        @Data
@@ -479,19 +575,17 @@ public class ApplicationProperties {
        }

        public boolean isAnalyticsEnabled() {
-            return this.getEnableAnalytics() != null && this.getEnableAnalytics();
+            return this.enableAnalytics != null && this.enableAnalytics;
        }

        public boolean isPosthogEnabled() {
            // Treat null as enabled when analytics is enabled
-            return this.isAnalyticsEnabled()
-                    && (this.getEnablePosthog() == null || this.getEnablePosthog());
+            return this.isAnalyticsEnabled() && (this.enablePosthog == null || this.enablePosthog);
        }

        public boolean isScarfEnabled() {
            // Treat null as enabled when analytics is enabled
-            return this.isAnalyticsEnabled()
-                    && (this.getEnableScarf() == null || this.getEnableScarf());
+            return this.isAnalyticsEnabled() && (this.enableScarf == null || this.enableScarf);
        }
    }

@@ -602,7 +696,8 @@ public class ApplicationProperties {

        @Override
        public String toString() {
-            return """
+            return
+                    """
            Driver {
              driverName='%s'
            }
@@ -616,6 +711,9 @@ public class ApplicationProperties {
        private String appNameNavbar;
        private List<String> languages;
        private String logoStyle = "classic"; // Options: "classic" (default) or "modern"
+        private boolean defaultHideUnavailableTools = false;
+        private boolean defaultHideUnavailableConversions = false;
+        private HideDisabledTools hideDisabledTools = new HideDisabledTools();

        public String getAppNameNavbar() {
            return appNameNavbar != null && !appNameNavbar.trim().isEmpty() ? appNameNavbar : null;
@@ -628,6 +726,12 @@ public class ApplicationProperties {
            }
            return "classic"; // default
        }
+
+        @Data
+        public static class HideDisabledTools {
+            private boolean googleDrive = false;
+            private boolean mobileQRScanner = false;
+        }
    }

    @Data
@@ -815,6 +919,15 @@ public class ApplicationProperties {
            private boolean ssoAutoLogin;
            private boolean database;
            private CustomMetadata customMetadata = new CustomMetadata();
+            private GoogleDrive googleDrive = new GoogleDrive();
+
+            @Data
+            public static class GoogleDrive {
+                private boolean enabled = false;
+                private String clientId = "";
+                private String apiKey = "";
+                private String appId = "";
+            }

            @Data
            public static class CustomMetadata {
@@ -864,6 +977,12 @@ public class ApplicationProperties {
                private boolean enabled = true;
                private int level = 2; // 0=OFF, 1=BASIC, 2=STANDARD, 3=VERBOSE
                private int retentionDays = 90;
+                private boolean captureFileHash =
+                        false; // Capture SHA-256 hash of files (increases processing time)
+                private boolean capturePdfAuthor =
+                        false; // Capture PDF author metadata (increases processing time)
+                private boolean captureOperationResults =
+                        false; // Capture operation return values (not recommended, high volume)
            }

            @Data
@@ -0,0 +1,98 @@
+package stirling.software.common.model;
+
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/** Form field information with coordinates for interactive form viewer. */
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@JsonInclude(JsonInclude.Include.NON_NULL)
+@Schema(description = "Form field with coordinates and metadata")
+public class FormFieldWithCoordinates {
+
+    @Schema(description = "Fully qualified field name", example = "form1.firstName")
+    private String name;
+
+    @Schema(description = "Display label for the field", example = "First Name")
+    private String label;
+
+    @Schema(description = "Field type: text, checkbox, radio, combobox, listbox, button, signature")
+    private String type;
+
+    @Schema(description = "Current field value")
+    private String value;
+
+    @Schema(
+            description =
+                    "Available options (export values) for choice fields"
+                            + " (dropdown, radio, listbox)")
+    private List<String> options;
+
+    @Schema(
+            description =
+                    "Human-readable display labels for choice field options,"
+                            + " parallel to the 'options' list. Null when identical to options.")
+    private List<String> displayOptions;
+
+    @Schema(description = "Whether the field is required")
+    private boolean required;
+
+    @Schema(description = "Whether the field is read-only")
+    private boolean readOnly;
+
+    @Schema(description = "Whether this is a multi-select list box")
+    private boolean multiSelect;
+
+    @Schema(description = "Whether this is a multi-line text field")
+    private boolean multiline;
+
+    @Schema(description = "Tooltip/alternate name for the field")
+    private String tooltip;
+
+    @Schema(description = "Widget coordinates on each page (fields can have multiple widgets)")
+    private List<WidgetCoordinates> widgets;
+
+    /**
+     * Coordinates for a single widget annotation (visual representation of the field). A field can
+     * have multiple widgets if it appears on multiple pages.
+     */
+    @Data
+    @Builder
+    @NoArgsConstructor
+    @AllArgsConstructor
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    @Schema(description = "Widget coordinates in PDF space")
+    public static class WidgetCoordinates {
+
+        @Schema(description = "Page index (0-based)", example = "0")
+        private int pageIndex;
+
+        @Schema(description = "X coordinate in PDF points (lower-left origin)")
+        private float x;
+
+        @Schema(description = "Y coordinate in PDF points (lower-left origin)")
+        private float y;
+
+        @Schema(description = "Width in PDF points")
+        private float width;
+
+        @Schema(description = "Height in PDF points")
+        private float height;
+
+        @Schema(description = "Export value for this widget (radio/checkbox buttons only)")
+        private String exportValue;
+
+        @Schema(description = "Font size in PDF points")
+        private Float fontSize;
+    }
+}
@@ -42,7 +42,7 @@ public enum Role {
        // Using the fromString method to get the Role enum based on the roleId
        Role role = fromString(roleId);
        // Return the roleName of the found Role enum
-        return role.getRoleName();
+        return role.roleName;
    }

    // Method to retrieve all role IDs and role names
@@ -50,14 +50,14 @@ public enum Role {
        // Using LinkedHashMap to preserve order
        Map<String, String> roleDetails = new LinkedHashMap<>();
        for (Role role : Role.values()) {
-            roleDetails.put(role.getRoleId(), role.getRoleName());
+            roleDetails.put(role.roleId, role.roleName);
        }
        return roleDetails;
    }

    public static Role fromString(String roleId) {
        for (Role role : Role.values()) {
-            if (role.getRoleId().equalsIgnoreCase(roleId)) {
+            if (role.roleId.equalsIgnoreCase(roleId)) {
                return role;
            }
        }
@@ -117,13 +117,13 @@ public class Provider {
                + ", clientName="
                + getClientName()
                + ", clientId="
-                + getClientId()
+                + clientId
                + ", clientSecret="
-                + (getClientSecret() != null && !getClientSecret().isEmpty() ? "*****" : "NULL")
+                + (clientSecret != null && !clientSecret.isEmpty() ? "*****" : "NULL")
                + ", scopes="
                + getScopes()
                + ", useAsUsername="
-                + getUseAsUsername()
+                + useAsUsername
                + "]";
    }
 }
@@ -1,6 +1,8 @@
 package stirling.software.common.service;

+import java.io.BufferedInputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.UUID;
@@ -21,6 +23,9 @@ import lombok.extern.slf4j.Slf4j;
@Slf4j
 public class FileStorage {

+    /** Holds the result of a stream-to-disk store operation: the file ID and the bytes written. */
+    public record StoredFile(String fileId, long size) {}
+
    @Value("${stirling.tempDir:/tmp/stirling-files}")
    private String tempDirPath;

@@ -104,6 +109,40 @@ public class FileStorage {
        return Files.readAllBytes(filePath);
    }

+    /**
+     * Retrieve a file by its ID as a streaming InputStream. The caller is responsible for closing
+     * the returned stream.
+     *
+     * @param fileId The ID of the file to retrieve
+     * @return A buffered InputStream for the file
+     * @throws IOException If the file doesn't exist or can't be read
+     */
+    public InputStream retrieveInputStream(String fileId) throws IOException {
+        Path filePath = getFilePath(fileId);
+        // Let Files.newInputStream throw NoSuchFileException naturally — avoids TOCTOU race
+        // between exists-check and open when another thread may delete concurrently.
+        return new BufferedInputStream(Files.newInputStream(filePath));
+    }
+
+    /**
+     * Store data from an InputStream as a file and return its unique ID and byte count. Streams
+     * directly to disk without buffering the entire content in heap.
+     *
+     * @param inputStream The input stream to read from
+     * @param originalName The original name of the file (unused, kept for API symmetry)
+     * @return A {@link StoredFile} containing the file ID and the number of bytes written
+     * @throws IOException If there is an error storing the file
+     */
+    public StoredFile storeInputStream(InputStream inputStream, String originalName)
+            throws IOException {
+        String fileId = generateFileId();
+        Path filePath = getFilePath(fileId);
+        Files.createDirectories(filePath.getParent());
+        long size = Files.copy(inputStream, filePath);
+        log.debug("Stored input stream with ID: {}", fileId);
+        return new StoredFile(fileId, size);
+    }
+
    /**
     * Delete a file by its ID
     *
@@ -35,7 +35,7 @@ public class JobExecutorService {
    private final HttpServletRequest request;
    private final ResourceMonitor resourceMonitor;
    private final JobQueue jobQueue;
-    private final ExecutorService executor = ExecutorFactory.newVirtualOrCachedThreadExecutor();
+    private final ExecutorService executor = ExecutorFactory.newVirtualThreadExecutor();
    private final long effectiveTimeoutMs;

    @Autowired(required = false)
@@ -254,10 +254,13 @@ public class JobExecutorService {
                return ResponseEntity.internalServerError()
                        .body(Map.of("error", "Job timed out after " + timeoutToUse + " ms"));
            } catch (RuntimeException e) {
-                // Check if this is a wrapped typed exception that should be handled by
-                // GlobalExceptionHandler
+                // Check if this is a typed exception that should be handled by
+                // GlobalExceptionHandler (either directly or wrapped)
                Throwable cause = e.getCause();
-                if (cause instanceof stirling.software.common.util.ExceptionUtils.BaseAppException
+                if (e instanceof IllegalArgumentException
+                        || cause
+                                instanceof
+                                stirling.software.common.util.ExceptionUtils.BaseAppException
                        || cause
                                instanceof
                                stirling.software.common.util.ExceptionUtils
@@ -313,7 +316,7 @@ public class JobExecutorService {
                            filename =
                                    disposition.substring(
                                            disposition.indexOf("filename=") + 9,
-                                            disposition.lastIndexOf("\""));
+                                            disposition.lastIndexOf('"'));
                        }
                    }

@@ -44,8 +44,10 @@ public class JobQueue implements SmartLifecycle {

    private volatile BlockingQueue<QueuedJob> jobQueue;
    private final Map<String, QueuedJob> jobMap = new ConcurrentHashMap<>();
-    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
-    private final ExecutorService jobExecutor = ExecutorFactory.newVirtualOrCachedThreadExecutor();
+    private final ScheduledExecutorService scheduler =
+            Executors.newSingleThreadScheduledExecutor(
+                    Thread.ofVirtual().name("job-queue-scheduler-", 0).factory());
+    private final ExecutorService jobExecutor = ExecutorFactory.newVirtualThreadExecutor();
    private final Object queueLock = new Object(); // Lock for synchronizing queue operations

    private boolean shuttingDown = false;
@@ -9,6 +9,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.regex.Pattern;

 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
@@ -25,6 +26,9 @@ import lombok.extern.slf4j.Slf4j;
 public class MobileScannerService {

    private static final long SESSION_TIMEOUT_MS = 10 * 60 * 1000; // 10 minutes
+    private static final Pattern FILENAME_SANITIZE_PATTERN = Pattern.compile("[^a-zA-Z0-9._-]");
+    private static final Pattern SESSION_ID_VALIDATION_PATTERN = Pattern.compile("[a-zA-Z0-9-]+");
+    private static final Pattern FILE_EXTENSION_PATTERN = Pattern.compile("[.][^.]+$");
    private final Map<String, SessionData> activeSessions = new ConcurrentHashMap<>();
    private final Path tempDirectory;

@@ -121,10 +125,11 @@ public class MobileScannerService {
            // Handle duplicate filenames
            int counter = 1;
            while (Files.exists(filePath)) {
-                String nameWithoutExt = safeFilename.replaceFirst("[.][^.]+$", "");
+                String nameWithoutExt =
+                        FILE_EXTENSION_PATTERN.matcher(safeFilename).replaceFirst("");
                String ext =
                        safeFilename.contains(".")
-                                ? safeFilename.substring(safeFilename.lastIndexOf("."))
+                                ? safeFilename.substring(safeFilename.lastIndexOf('.'))
                                : "";
                safeFilename = nameWithoutExt + "-" + counter + ext;
                filePath = sessionDir.resolve(safeFilename).normalize().toAbsolutePath();
@@ -271,14 +276,14 @@ public class MobileScannerService {
            throw new IllegalArgumentException("Session ID cannot be empty");
        }
        // Basic validation: alphanumeric and hyphens only
-        if (!sessionId.matches("[a-zA-Z0-9-]+")) {
+        if (!SESSION_ID_VALIDATION_PATTERN.matcher(sessionId).matches()) {
            throw new IllegalArgumentException("Invalid session ID format");
        }
    }

    private String sanitizeFilename(String filename) {
        // Remove path traversal attempts and dangerous characters
-        String sanitized = filename.replaceAll("[^a-zA-Z0-9._-]", "_");
+        String sanitized = FILENAME_SANITIZE_PATTERN.matcher(filename).replaceAll("_");
        // Ensure we have a non-empty, safe filename
        if (sanitized.isBlank()) {
            sanitized = "upload-" + System.currentTimeMillis();
@@ -169,7 +169,10 @@ public class PdfMetadataService {
                            .getAuthor();

            if (userService != null) {
-                author = author.replace("username", userService.getCurrentUsername());
+                String username = userService.getCurrentUsername();
+                if (username != null) {
+                    author = author.replace("username", username);
+                }
            }
        }
        pdf.getDocumentInformation().setAuthor(author);
@@ -43,7 +43,9 @@ public class ResourceMonitor {
    @Value("${stirling.resource.monitor.interval-ms:60000}")
    private long monitorIntervalMs = 60000; // 60 seconds

-    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
+    private final ScheduledExecutorService scheduler =
+            Executors.newSingleThreadScheduledExecutor(
+                    Thread.ofVirtual().name("resource-monitor-", 0).factory());
    private final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    private final OperatingSystemMXBean osMXBean = ManagementFactory.getOperatingSystemMXBean();

@@ -1,8 +1,8 @@
 package stirling.software.common.service;

-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
+import java.io.BufferedInputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.time.LocalDateTime;
 import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
@@ -19,7 +19,6 @@ import java.util.zip.ZipInputStream;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.MediaType;
 import org.springframework.stereotype.Service;
-import org.springframework.web.multipart.MultipartFile;

 import io.github.pixee.security.ZipSecurity;

@@ -42,7 +41,8 @@ public class TaskManager {

    private final FileStorage fileStorage;
    private final ScheduledExecutorService cleanupExecutor =
-            Executors.newSingleThreadScheduledExecutor();
+            Executors.newSingleThreadScheduledExecutor(
+                    Thread.ofVirtual().name("task-cleanup-", 0).factory());

    /** Initialize the task manager and start the cleanup scheduler */
    public TaskManager(FileStorage fileStorage) {
@@ -362,39 +362,29 @@ public class TaskManager {
            String zipFileId, String originalZipFileName) throws IOException {
        List<ResultFile> extractedFiles = new ArrayList<>();

-        MultipartFile zipFile = fileStorage.retrieveFile(zipFileId);
-
-        try (ZipInputStream zipIn =
-                ZipSecurity.createHardenedInputStream(
-                        new ByteArrayInputStream(zipFile.getBytes()))) {
+        try (InputStream fileStream = fileStorage.retrieveInputStream(zipFileId);
+                ZipInputStream zipIn =
+                        ZipSecurity.createHardenedInputStream(
+                                new BufferedInputStream(fileStream))) {
            ZipEntry entry;
            while ((entry = zipIn.getNextEntry()) != null) {
                if (!entry.isDirectory()) {
-                    // Use buffered reading for memory safety
-                    ByteArrayOutputStream out = new ByteArrayOutputStream();
-                    byte[] buffer = new byte[4096];
-                    int bytesRead;
-                    while ((bytesRead = zipIn.read(buffer)) != -1) {
-                        out.write(buffer, 0, bytesRead);
-                    }
-                    byte[] fileContent = out.toByteArray();
-
                    String contentType = determineContentType(entry.getName());
-                    String individualFileId = fileStorage.storeBytes(fileContent, entry.getName());
+                    // storeInputStream returns the fileId and byte count — no extra stat needed
+                    FileStorage.StoredFile stored =
+                            fileStorage.storeInputStream(zipIn, entry.getName());

                    ResultFile resultFile =
                            ResultFile.builder()
-                                    .fileId(individualFileId)
+                                    .fileId(stored.fileId())
                                    .fileName(entry.getName())
                                    .contentType(contentType)
-                                    .fileSize(fileContent.length)
+                                    .fileSize(stored.size())
                                    .build();

                    extractedFiles.add(resultFile);
                    log.debug(
-                            "Extracted file: {} (size: {} bytes)",
-                            entry.getName(),
-                            fileContent.length);
+                            "Extracted file: {} (size: {} bytes)", entry.getName(), stored.size());
                }
                zipIn.closeEntry();
            }
@@ -466,4 +456,24 @@ public class TaskManager {
        }
        return null;
    }
+
+    /**
+     * Find the job key that owns a given file ID.
+     *
+     * @param fileId file identifier to look up
+     * @return scoped job key if found, otherwise null
+     */
+    public String findJobKeyByFileId(String fileId) {
+        for (Map.Entry<String, JobResult> entry : jobResults.entrySet()) {
+            JobResult jobResult = entry.getValue();
+            if (jobResult.hasFiles()) {
+                for (ResultFile resultFile : jobResult.getAllResultFiles()) {
+                    if (fileId.equals(resultFile.getFileId())) {
+                        return entry.getKey();
+                    }
+                }
+            }
+        }
+        return null;
+    }
 }
@@ -4,6 +4,7 @@ import java.io.BufferedInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.Enumeration;
@@ -30,15 +31,7 @@ import stirling.software.common.service.CustomPDFDocumentFactory;
@UtilityClass
 public class CbzUtils {

-    public byte[] convertCbzToPdf(
-            MultipartFile cbzFile,
-            CustomPDFDocumentFactory pdfDocumentFactory,
-            TempFileManager tempFileManager)
-            throws IOException {
-        return convertCbzToPdf(cbzFile, pdfDocumentFactory, tempFileManager, false);
-    }
-
-    public byte[] convertCbzToPdf(
+    public TempFile convertCbzToPdf(
            MultipartFile cbzFile,
            CustomPDFDocumentFactory pdfDocumentFactory,
            TempFileManager tempFileManager,
@@ -64,70 +57,90 @@ public class CbzUtils {

            try (PDDocument document = pdfDocumentFactory.createNewDocument();
                    ZipFile zipFile = new ZipFile(tempFile.getFile())) {
+
+                // Pass 1: collect sorted image names (cheap just strings, no image data)
+                List<String> sortedImageNames = new ArrayList<>();
                Enumeration<? extends ZipEntry> entries = zipFile.entries();
-                List<ImageEntryData> imageEntries = new ArrayList<>();
                while (entries.hasMoreElements()) {
                    ZipEntry entry = entries.nextElement();
                    if (!entry.isDirectory() && isImageFile(entry.getName())) {
-                        try (InputStream is = zipFile.getInputStream(entry)) {
-                            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-                            is.transferTo(baos);
-                            imageEntries.add(
-                                    new ImageEntryData(entry.getName(), baos.toByteArray()));
-                        } catch (IOException e) {
-                            log.warn("Error reading image {}: {}", entry.getName(), e.getMessage());
-                        }
+                        sortedImageNames.add(entry.getName());
                    }
                }
+                sortedImageNames.sort(new NaturalOrderComparator());

-                imageEntries.sort(
-                        Comparator.comparing(ImageEntryData::name, new NaturalOrderComparator()));
-
-                if (imageEntries.isEmpty()) {
+                if (sortedImageNames.isEmpty()) {
                    throw ExceptionUtils.createCbzNoImagesException();
                }

-                for (ImageEntryData imageEntry : imageEntries) {
-                    try {
-                        PDImageXObject pdImage =
-                                PDImageXObject.createFromByteArray(
-                                        document, imageEntry.data(), imageEntry.name());
-                        PDPage page =
-                                new PDPage(
-                                        new PDRectangle(pdImage.getWidth(), pdImage.getHeight()));
-                        document.addPage(page);
-                        try (PDPageContentStream contentStream =
-                                new PDPageContentStream(
-                                        document,
-                                        page,
-                                        PDPageContentStream.AppendMode.OVERWRITE,
-                                        true,
-                                        true)) {
-                            contentStream.drawImage(pdImage, 0, 0);
+                // Pass 2: load ONE image at a time peak memory = max(single image)
+                for (String imageName : sortedImageNames) {
+                    ZipEntry entry = zipFile.getEntry(imageName);
+                    try (InputStream is = zipFile.getInputStream(entry)) {
+                        ByteArrayOutputStream imgBaos = new ByteArrayOutputStream();
+                        is.transferTo(imgBaos);
+                        byte[] imageBytes = imgBaos.toByteArray();
+                        try {
+                            PDImageXObject pdImage =
+                                    PDImageXObject.createFromByteArray(
+                                            document, imageBytes, imageName);
+                            PDPage page =
+                                    new PDPage(
+                                            new PDRectangle(
+                                                    pdImage.getWidth(), pdImage.getHeight()));
+                            document.addPage(page);
+                            try (PDPageContentStream contentStream =
+                                    new PDPageContentStream(
+                                            document,
+                                            page,
+                                            PDPageContentStream.AppendMode.OVERWRITE,
+                                            true,
+                                            true)) {
+                                contentStream.drawImage(pdImage, 0, 0);
+                            }
+                        } catch (IOException e) {
+                            log.warn("Error processing image {}: {}", imageName, e.getMessage());
                        }
+                        // imageBytes eligible for GC after each iteration
                    } catch (IOException e) {
-                        log.warn(
-                                "Error processing image {}: {}", imageEntry.name(), e.getMessage());
+                        log.warn("Error reading image {}: {}", imageName, e.getMessage());
                    }
                }

                if (document.getNumberOfPages() == 0) {
                    throw ExceptionUtils.createCbzCorruptedImagesException();
                }
-                ByteArrayOutputStream baos = new ByteArrayOutputStream();
-                document.save(baos);
-                byte[] pdfBytes = baos.toByteArray();

-                // Apply Ghostscript optimization if requested
-                if (optimizeForEbook) {
-                    try {
-                        return GeneralUtils.optimizePdfWithGhostscript(pdfBytes);
-                    } catch (IOException e) {
-                        log.warn("Ghostscript optimization failed, returning unoptimized PDF", e);
+                // Write to TempFile (not BAOS)
+                TempFile pdfTempFile = new TempFile(tempFileManager, ".pdf");
+                try {
+                    document.save(pdfTempFile.getFile());
+
+                    if (optimizeForEbook) {
+                        try {
+                            byte[] pdfBytes = Files.readAllBytes(pdfTempFile.getPath());
+                            byte[] optimized = GeneralUtils.optimizePdfWithGhostscript(pdfBytes);
+                            pdfTempFile.close();
+                            TempFile optimizedFile = new TempFile(tempFileManager, ".pdf");
+                            try {
+                                Files.write(optimizedFile.getPath(), optimized);
+                                return optimizedFile;
+                            } catch (Exception e) {
+                                optimizedFile.close();
+                                throw e;
+                            }
+                        } catch (IOException e) {
+                            log.warn(
+                                    "Ghostscript optimization failed, returning unoptimized PDF",
+                                    e);
+                        }
                    }
-                }

-                return pdfBytes;
+                    return pdfTempFile;
+                } catch (Exception e) {
+                    pdfTempFile.close();
+                    throw e;
+                }
            }
        }
    }
@@ -175,8 +188,6 @@ public class CbzUtils {
        return RegexPatternUtils.getInstance().getImageFilePattern().matcher(filename).matches();
    }

-    private record ImageEntryData(String name, byte[] data) {}
-
    private class NaturalOrderComparator implements Comparator<String> {
        @Override
        public int compare(String s1, String s2) {
@@ -341,7 +341,8 @@ public class EmlProcessingUtils {
    }

    private String getFallbackStyles() {
-        return """
+        return
+        """
            /* Minimal fallback - main CSS resource failed to load */
            body {
                font-family: var(--font-family, Helvetica, sans-serif);
@@ -2,30 +2,28 @@ package stirling.software.common.util;

 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;

-import lombok.extern.slf4j.Slf4j;
+/**
+ * Factory for creating executors backed by virtual threads (Java 21+). Virtual threads are
+ * lightweight, managed by the JVM, and ideal for I/O-bound tasks. They eliminate the need for
+ * thread pool sizing since thousands can run concurrently with minimal overhead.
+ */
+public final class ExecutorFactory {

-@Slf4j
-public class ExecutorFactory {
+    private ExecutorFactory() {}
+
+    /** Creates an {@link ExecutorService} that starts a new virtual thread for each task. */
+    public static ExecutorService newVirtualThreadExecutor() {
+        return Executors.newVirtualThreadPerTaskExecutor();
+    }

    /**
-     * Creates an ExecutorService using virtual threads if available (Java 21+), or falls back to a
-     * cached thread pool on older Java versions.
+     * Creates a {@link ScheduledExecutorService} backed by a single virtual thread. Useful for
+     * periodic/delayed tasks that should not pin a platform thread.
     */
-    public static ExecutorService newVirtualOrCachedThreadExecutor() {
-        try {
-            ExecutorService executor =
-                    (ExecutorService)
-                            Executors.class
-                                    .getMethod("newVirtualThreadPerTaskExecutor")
-                                    .invoke(null);
-            return executor;
-        } catch (NoSuchMethodException e) {
-            log.debug("Virtual threads not available; falling back to cached thread pool.");
-        } catch (Exception e) {
-            log.debug("Error initializing virtual thread executor: {}", e.getMessage(), e);
-        }
-
-        return Executors.newCachedThreadPool();
+    public static ScheduledExecutorService newSingleVirtualThreadScheduledExecutor() {
+        return Executors.newSingleThreadScheduledExecutor(
+                Thread.ofVirtual().name("scheduled-vt-", 0).factory());
    }
 }
@@ -68,6 +68,17 @@ public class FileMonitor {

        if (this.rootDirs.isEmpty()) {
            log.error("No valid directories to monitor - FileMonitor will not function");
+        } else {
+            // Register directories eagerly so the first @Scheduled tick does not warn.
+            for (Path rootDir : this.rootDirs) {
+                if (Files.exists(rootDir)) {
+                    try {
+                        recursivelyRegisterEntry(rootDir);
+                    } catch (IOException e) {
+                        log.error("Failed to register monitoring for {}", rootDir, e);
+                    }
+                }
+            }
        }
    }

@@ -44,9 +44,7 @@ public class FileToPdf {
                            sanitizeHtmlContent(
                                    new String(fileBytes, StandardCharsets.UTF_8),
                                    customHtmlSanitizer);
-                    Files.write(
-                            tempInputFile.getPath(),
-                            sanitizedHtml.getBytes(StandardCharsets.UTF_8));
+                    Files.writeString(tempInputFile.getPath(), sanitizedHtml);
                } else if (fileName.toLowerCase(Locale.ROOT).endsWith(".zip")) {
                    Files.write(tempInputFile.getPath(), fileBytes);
                    sanitizeHtmlFilesInZip(
@@ -100,6 +98,13 @@ public class FileToPdf {
                while (entry != null) {
                    Path filePath =
                            tempUnzippedDir.getPath().resolve(sanitizeZipFilename(entry.getName()));
+                    Path normalizedTargetDir =
+                            tempUnzippedDir.getPath().toAbsolutePath().normalize();
+                    Path normalizedFilePath = filePath.toAbsolutePath().normalize();
+                    if (!normalizedFilePath.startsWith(normalizedTargetDir)) {
+                        throw new IOException(
+                                "Zip entry path escapes target directory: " + entry.getName());
+                    }
                    if (!entry.isDirectory()) {
                        Files.createDirectories(filePath.getParent());
                        if (entry.getName().toLowerCase(Locale.ROOT).endsWith(".html")
@@ -108,8 +113,7 @@ public class FileToPdf {
                                    new String(zipIn.readAllBytes(), StandardCharsets.UTF_8);
                            String sanitizedContent =
                                    sanitizeHtmlContent(content, customHtmlSanitizer);
-                            Files.write(
-                                    filePath, sanitizedContent.getBytes(StandardCharsets.UTF_8));
+                            Files.writeString(filePath, sanitizedContent);
                        } else {
                            Files.copy(zipIn, filePath);
                        }
@@ -1,4 +1,4 @@
-package stirling.software.proprietary.util;
+package stirling.software.common.util;

 import java.io.IOException;
 import java.util.Arrays;
@@ -1,10 +1,11 @@
-package stirling.software.proprietary.util;
+package stirling.software.common.util;

 import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.IdentityHashMap;
@@ -16,8 +17,10 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
+import java.util.regex.Pattern;

 import org.apache.pdfbox.cos.COSArray;
+import org.apache.pdfbox.cos.COSBase;
 import org.apache.pdfbox.cos.COSDictionary;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
@@ -46,9 +49,7 @@ import lombok.experimental.UtilityClass;
 import lombok.extern.slf4j.Slf4j;

 import stirling.software.common.model.ApplicationProperties;
-import stirling.software.common.util.ApplicationContextProvider;
-import stirling.software.common.util.ExceptionUtils;
-import stirling.software.common.util.RegexPatternUtils;
+import stirling.software.common.model.FormFieldWithCoordinates;

@Slf4j
@UtilityClass
@@ -67,6 +68,17 @@ public class FormUtils {
    public final Set<String> CHOICE_FIELD_TYPES =
            Set.of(FIELD_TYPE_COMBOBOX, FIELD_TYPE_LISTBOX, FIELD_TYPE_RADIO);

+    /**
+     * Threshold in PDF points for considering two widgets to be on the same line. Fields whose
+     * y-coordinates differ by less than this value are sorted left-to-right by x-coordinate instead
+     * of top-to-bottom.
+     */
+    private static final float SAME_LINE_THRESHOLD_PT = 10.0f;
+
+    private static final Pattern HEX_UUID_PATTERN =
+            Pattern.compile("^[0-9a-fA-F]{8}[0-9a-fA-F]{24,}$");
+    private static final Pattern WHITESPACE_PATTERN = Pattern.compile("\\s+");
+
    /**
     * Returns a normalized logical type string for the supplied PDFBox field instance. Centralized
     * so all callers share identical mapping logic.
@@ -109,6 +121,8 @@ public class FormUtils {
        List<FormFieldInfo> fields = new ArrayList<>();
        Map<String, Integer> typeCounters = new HashMap<>();
        Map<Integer, Integer> pageOrderCounters = new HashMap<>();
+        Map<COSDictionary, Integer> annotationPageMap = buildAnnotationPageMap(document);
+
        for (PDField field : acroForm.getFieldTree()) {
            if (!(field instanceof PDTerminalField terminalField)) {
                continue;
@@ -123,9 +137,9 @@ public class FormUtils {
                continue;
            }

-            String currentValue = safeValue(terminalField);
+            String currentValue = safeFieldValue(terminalField);
            boolean required = field.isRequired();
-            int pageIndex = resolveFirstWidgetPageIndex(document, terminalField);
+            int pageIndex = resolveFirstWidgetPageIndex(document, terminalField, annotationPageMap);
            List<String> options = resolveOptions(terminalField);
            String tooltip = resolveTooltip(terminalField);
            int typeIndex = typeCounters.merge(type, 1, Integer::sum);
@@ -164,6 +178,396 @@ public class FormUtils {
        return Collections.unmodifiableList(fields);
    }

+    /**
+     * Extract form fields with widget coordinates for the interactive form viewer.
+     *
+     * @param document PDF document
+     * @return List of form fields with coordinates and metadata
+     */
+    public List<FormFieldWithCoordinates> extractFormFieldsWithCoordinates(PDDocument document) {
+        if (document == null) return List.of();
+
+        PDAcroForm acroForm = getAcroFormSafely(document);
+        if (acroForm == null) return List.of();
+
+        List<FormFieldWithCoordinates> fields = new ArrayList<>();
+        Map<String, Integer> typeCounters = new HashMap<>();
+
+        Map<COSDictionary, Integer> annotationPageMap = buildAnnotationPageMap(document);
+
+        for (PDField field : acroForm.getFieldTree()) {
+            if (!(field instanceof PDTerminalField terminalField)) {
+                continue;
+            }
+
+            String type = detectFieldType(terminalField);
+            String name =
+                    Optional.ofNullable(field.getFullyQualifiedName())
+                            .orElseGet(field::getPartialName);
+            if (name == null || name.isBlank()) {
+                continue;
+            }
+
+            String currentValue = safeFieldValue(terminalField);
+            boolean required = field.isRequired();
+            boolean readOnly = field.isReadOnly();
+            List<String> options = resolveOptions(terminalField);
+            List<String> displayOptions = resolveDisplayOptions(terminalField);
+            String tooltip = resolveTooltip(terminalField);
+            int typeIndex = typeCounters.merge(type, 1, Integer::sum);
+            String displayLabel =
+                    deriveDisplayLabel(field, name, tooltip, type, typeIndex, options);
+            boolean multiSelect = resolveMultiSelect(terminalField);
+            boolean multiline =
+                    terminalField instanceof PDTextField
+                            && ((PDTextField) terminalField).isMultiline();
+
+            // Extract widget coordinates
+            List<FormFieldWithCoordinates.WidgetCoordinates> widgets =
+                    extractWidgetCoordinates(document, terminalField, annotationPageMap);
+
+            // Only include displayOptions when they differ from export options
+            List<String> displayOptsToSend = null;
+            if (displayOptions != null
+                    && !displayOptions.isEmpty()
+                    && !displayOptions.equals(options)) {
+                displayOptsToSend = displayOptions;
+            }
+
+            fields.add(
+                    FormFieldWithCoordinates.builder()
+                            .name(name)
+                            .label(displayLabel)
+                            .type(type)
+                            .value(currentValue)
+                            .options(options.isEmpty() ? null : options)
+                            .displayOptions(displayOptsToSend)
+                            .required(required)
+                            .readOnly(readOnly)
+                            .multiSelect(multiSelect)
+                            .multiline(multiline)
+                            .tooltip(tooltip)
+                            .widgets(widgets.isEmpty() ? null : widgets)
+                            .build());
+        }
+
+        // Sort by page and position
+        fields.sort(new FieldCoordinateComparator());
+
+        log.debug("Total fields processed: {}", fields.size());
+        log.debug(
+                "Fields WITH widgets: {}",
+                fields.stream()
+                        .filter(f -> f.getWidgets() != null && !f.getWidgets().isEmpty())
+                        .count());
+        log.debug(
+                "Fields WITHOUT widgets: {}",
+                fields.stream()
+                        .filter(f -> f.getWidgets() == null || f.getWidgets().isEmpty())
+                        .count());
+
+        fields.stream()
+                .filter(f -> f.getWidgets() == null || f.getWidgets().isEmpty())
+                .forEach(
+                        f ->
+                                log.debug(
+                                        "Field '{}' type={} has NO widget coordinates",
+                                        f.getName(),
+                                        f.getType()));
+
+        return Collections.unmodifiableList(fields);
+    }
+
+    /**
+     * Extract widget coordinates for a form field.
+     *
+     * @param document PDF document
+     * @param field Terminal field
+     * @return List of widget coordinates
+     */
+    private List<FormFieldWithCoordinates.WidgetCoordinates> extractWidgetCoordinates(
+            PDDocument document,
+            PDTerminalField field,
+            Map<COSDictionary, Integer> annotationPageMap) {
+        List<FormFieldWithCoordinates.WidgetCoordinates> result = new ArrayList<>();
+
+        List<PDAnnotationWidget> widgets = field.getWidgets();
+
+        log.debug(
+                "Field '{}' type={} has {} widgets",
+                field.getFullyQualifiedName(),
+                field.getClass().getSimpleName(),
+                widgets != null ? widgets.size() : 0);
+
+        if (widgets == null || widgets.isEmpty()) {
+            // Some fields (especially text fields) might be their own widget annotation
+            log.trace(
+                    "Field '{}' has no widgets, checking if field acts as its own annotation",
+                    field.getFullyQualifiedName());
+            try {
+                COSDictionary fieldDict = field.getCOSObject();
+                COSBase rectBase = fieldDict.getDictionaryObject(COSName.RECT);
+                if (rectBase instanceof COSArray rectArray) {
+                    int pageIndex =
+                            findPageIndexForAnnotation(document, fieldDict, annotationPageMap);
+                    if (pageIndex >= 0) {
+                        PDRectangle rectangle = new PDRectangle(rectArray);
+                        result.add(
+                                createWidgetCoordinates(
+                                        document, rectangle, pageIndex, null, field));
+                    } else {
+                        log.warn(
+                                "Found rectangle for field '{}' but could not resolve page index",
+                                field.getFullyQualifiedName());
+                    }
+                }
+            } catch (Exception e) {
+                log.debug(
+                        "Could not extract direct rectangle for field '{}': {}",
+                        field.getFullyQualifiedName(),
+                        e.getMessage());
+            }
+            return result;
+        }
+
+        // For radio buttons, pre-resolve export values per widget
+        List<String> exportValues = null;
+        if (field instanceof PDRadioButton radio) {
+            exportValues = radio.getExportValues();
+        }
+
+        for (int i = 0; i < widgets.size(); i++) {
+            PDAnnotationWidget widget = widgets.get(i);
+            try {
+                PDRectangle rectangle = widget.getRectangle();
+                if (rectangle == null) {
+                    log.warn(
+                            "Field '{}' widget {} has NULL rectangle",
+                            field.getFullyQualifiedName(),
+                            i);
+                    continue;
+                }
+
+                int pageIndex = resolveWidgetPageIndex(document, widget, annotationPageMap);
+                if (pageIndex < 0) {
+                    log.warn(
+                            "Field '{}' widget {} could not resolve page index",
+                            field.getFullyQualifiedName(),
+                            i);
+                    continue;
+                }
+
+                // Resolve export value for radio/checkbox widgets
+                String exportValue = null;
+                if (exportValues != null && i < exportValues.size()) {
+                    exportValue = exportValues.get(i);
+                } else if (field instanceof PDButton) {
+                    // Fall back to appearance state name from the widget's normal appearance
+                    try {
+                        var ap = widget.getAppearance();
+                        if (ap != null && ap.getNormalAppearance() != null) {
+                            var normalAp = ap.getNormalAppearance();
+                            if (normalAp.isSubDictionary()) {
+                                for (var cosName : normalAp.getSubDictionary().keySet()) {
+                                    String key = cosName.getName();
+                                    if (!"Off".equals(key)) {
+                                        exportValue = key;
+                                        break;
+                                    }
+                                }
+                            }
+                        }
+                    } catch (Exception e) {
+                        log.trace(
+                                "Could not extract export value for widget in '{}': {}",
+                                field.getFullyQualifiedName(),
+                                e.getMessage());
+                    }
+                }
+
+                result.add(
+                        createWidgetCoordinates(
+                                document, rectangle, pageIndex, exportValue, field));
+            } catch (Exception e) {
+                log.debug(
+                        "Failed to extract coordinates for widget in field '{}': {}",
+                        field.getFullyQualifiedName(),
+                        e.getMessage());
+            }
+        }
+
+        return result;
+    }
+
+    private FormFieldWithCoordinates.WidgetCoordinates createWidgetCoordinates(
+            PDDocument document,
+            PDRectangle rectangle,
+            int pageIndex,
+            String exportValue,
+            PDTerminalField field) {
+        if (pageIndex < 0 || pageIndex >= document.getNumberOfPages()) {
+            return null;
+        }
+
+        PDPage page = document.getPage(pageIndex);
+        PDRectangle cropBox = page.getCropBox();
+
+        // Use CropBox dimensions for the y-flip.
+        // Note: getWidth() and getHeight() return dimensions BEFORE rotation.
+        float cropHeight = cropBox.getHeight();
+
+        // Get absolute widget coordinates (in MediaBox space, un-rotated)
+        float pdfX = rectangle.getLowerLeftX();
+        float pdfY = rectangle.getLowerLeftY();
+        float width = rectangle.getWidth();
+        float height = rectangle.getHeight();
+
+        // Adjust relative to CropBox origin
+        float relativeX = pdfX - cropBox.getLowerLeftX();
+        float relativeY = pdfY - cropBox.getLowerLeftY();
+
+        // Convert from PDF lower-left origin to CSS upper-left origin (y-flip).
+        // Widget /Rect coordinates are always in un-rotated PDF user space.
+        // The embedpdf viewer wraps all page content inside a <Rotate> CSS
+        // component that handles visual rotation — we must NOT apply any
+        // rotation transform here, or widgets would be double-rotated.
+        float finalX = relativeX;
+        float finalY = cropHeight - relativeY - height;
+        float finalW = width;
+        float finalH = height;
+
+        // Validate coordinates are within reasonable bounds
+        if (finalX < -1.0f
+                || finalY < -1.0f
+                || finalX > cropBox.getWidth() * 2 // Allow some horizontal overflow
+                || finalY > cropHeight + 1.0f) {
+            log.warn(
+                    "Widget coordinates out of bounds for field '{}': page={}, x={}, y={}, w={}, h={}",
+                    field.getFullyQualifiedName(),
+                    pageIndex,
+                    finalX,
+                    finalY,
+                    finalW,
+                    finalH);
+            return null;
+        }
+
+        return FormFieldWithCoordinates.WidgetCoordinates.builder()
+                .pageIndex(pageIndex)
+                .x(finalX)
+                .y(finalY)
+                .width(finalW)
+                .height(finalH)
+                .exportValue(exportValue)
+                .fontSize(extractFontSize(field))
+                .build();
+    }
+
+    /**
+     * Repairs widgets with missing page references by scanning all pages and setting the /P entry
+     * for orphan widgets.
+     *
+     * <p>This should be called BEFORE extracting form field coordinates.
+     *
+     * @param document PDF document to repair
+     */
+    public void repairMissingWidgetPageReferences(PDDocument document) {
+        try {
+            PDAcroForm acroForm = getAcroFormSafely(document);
+            if (acroForm == null) {
+                return;
+            }
+
+            log.debug("Checking for widgets with missing page references...");
+            int repairedCount = 0;
+
+            Map<COSDictionary, Integer> annotationPageMap = buildAnnotationPageMap(document);
+
+            for (PDField field : acroForm.getFieldTree()) {
+                if (!(field instanceof PDTerminalField terminalField)) {
+                    continue;
+                }
+
+                List<PDAnnotationWidget> widgets = terminalField.getWidgets();
+
+                if (widgets == null || widgets.isEmpty()) {
+                    continue;
+                }
+
+                for (PDAnnotationWidget widget : widgets) {
+                    if (widget.getPage() == null) {
+                        Integer pageIndex = annotationPageMap.get(widget.getCOSObject());
+                        if (pageIndex != null && pageIndex >= 0) {
+                            PDPage foundPage = document.getPage(pageIndex);
+                            widget.setPage(foundPage);
+                            repairedCount++;
+                            log.debug(
+                                    "Repaired widget for field '{}' - set page reference via map",
+                                    field.getFullyQualifiedName());
+                        } else {
+                            log.warn(
+                                    "Could not find page for widget in field '{}'",
+                                    field.getFullyQualifiedName());
+                        }
+                    }
+                }
+            }
+
+            if (repairedCount > 0) {
+                log.debug(
+                        "Successfully repaired {} widgets with missing page references",
+                        repairedCount);
+            } else {
+                log.debug("No widgets needed repair");
+            }
+
+        } catch (Exception e) {
+            log.error("Error repairing widget page references: {}", e.getMessage(), e);
+        }
+    }
+
+    private int findPageIndexForAnnotation(
+            PDDocument document,
+            COSDictionary annotDict,
+            Map<COSDictionary, Integer> annotationPageMap) {
+        try {
+            // Method 0: Check the pre-built lookup map (fastest)
+            if (annotationPageMap != null) {
+                Integer idx = annotationPageMap.get(annotDict);
+                if (idx != null) {
+                    return idx;
+                }
+            }
+
+            // Method 1: Check the /P entry if it points to a page
+            COSBase base = annotDict.getDictionaryObject(COSName.P);
+            COSDictionary pageDict = (base instanceof COSDictionary c) ? c : null;
+            if (pageDict != null) {
+                for (int i = 0; i < document.getNumberOfPages(); i++) {
+                    if (document.getPage(i).getCOSObject() == pageDict) {
+                        return i;
+                    }
+                }
+            }
+
+            // Method 2: Fallback search through all pages' annotations
+            for (int i = 0; i < document.getNumberOfPages(); i++) {
+                PDPage page = document.getPage(i);
+                List<PDAnnotation> annotations = page.getAnnotations();
+                if (annotations != null) {
+                    for (PDAnnotation annot : annotations) {
+                        if (annot != null && annot.getCOSObject() == annotDict) {
+                            return i;
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            log.trace("Error finding page for annotation: {}", e.getMessage());
+        }
+        return -1;
+    }
+
    /**
     * Build a single record object (field-name -> value placeholder) that can be directly submitted
     * to /api/v1/form/fill as the 'data' JSON. For checkboxes a boolean false is supplied unless
@@ -312,7 +716,24 @@ public class FormUtils {
            return;
        }

-        flattenViaRendering(document, acroForm);
+        if (acroForm == null) {
+            return;
+        }
+
+        // Use PDFBox's built-in field flattening which bakes form field values
+        // into the page content stream as static text/graphics, removing the
+        // interactive form structure but preserving all other document content
+        // (images, text, annotations, etc.) at full quality.
+        try {
+            ensureAppearances(acroForm);
+            acroForm.flatten();
+        } catch (Exception e) {
+            log.warn(
+                    "PDFBox acroForm.flatten() failed, falling back to rendering: {}",
+                    e.getMessage(),
+                    e);
+            flattenViaRendering(document, acroForm);
+        }
    }

    private void rebuildDocumentFromImages(PDDocument document, PDFRenderer renderer, int dpi)
@@ -385,7 +806,7 @@ public class FormUtils {

                PDPage page = widget.getPage();
                if (page == null) {
-                    page = resolveWidgetPage(document, widget);
+                    page = resolveWidgetPage(document, widget, null);
                    if (page != null) {
                        widget.setPage(page);
                    }
@@ -818,8 +1239,22 @@ public class FormUtils {
        return states;
    }

-    private String safeValue(PDTerminalField field) {
+    public String safeValue(String value) {
+        return value != null ? value : "";
+    }
+
+    private String safeFieldValue(PDTerminalField field) {
        try {
+            // PDChoice.getValueAsString() returns a raw COS string representation
+            // that doesn't reliably reflect the selected value. Use getValue()
+            // which returns the proper List<String> of selected options.
+            if (field instanceof PDChoice choiceField) {
+                List<String> selected = choiceField.getValue();
+                if (selected == null || selected.isEmpty()) {
+                    return null;
+                }
+                return String.join(",", selected);
+            }
            return field.getValueAsString();
        } catch (Exception e) {
            log.debug(
@@ -833,14 +1268,25 @@ public class FormUtils {
    List<String> resolveOptions(PDTerminalField field) {
        try {
            if (field instanceof PDChoice choice) {
-                List<String> display = choice.getOptionsDisplayValues();
-                if (display != null && !display.isEmpty()) {
-                    return new ArrayList<>(display);
-                }
+                LinkedHashSet<String> allowed = new LinkedHashSet<>();
                List<String> exportValues = choice.getOptionsExportValues();
-                if (exportValues != null && !exportValues.isEmpty()) {
-                    return new ArrayList<>(exportValues);
+                List<String> displayValues = choice.getOptionsDisplayValues();
+
+                if (exportValues != null) {
+                    exportValues.stream()
+                            .filter(Objects::nonNull)
+                            .map(String::trim)
+                            .filter(s -> !s.isEmpty())
+                            .forEach(allowed::add);
                }
+                if (displayValues != null) {
+                    displayValues.stream()
+                            .filter(Objects::nonNull)
+                            .map(String::trim)
+                            .filter(s -> !s.isEmpty())
+                            .forEach(allowed::add);
+                }
+                return new ArrayList<>(allowed);
            } else if (field instanceof PDRadioButton radio) {
                List<String> exports = radio.getExportValues();
                if (exports != null && !exports.isEmpty()) {
@@ -861,6 +1307,29 @@ public class FormUtils {
        return Collections.emptyList();
    }

+    /**
+     * Returns the display-value labels for a choice field's options. For radio / checkbox this
+     * returns an empty list (no separate display values). For PDChoice fields, if the PDF provides
+     * distinct display values, those are returned; otherwise an empty list (indicating that the
+     * export values from {@link #resolveOptions} should be shown directly).
+     */
+    List<String> resolveDisplayOptions(PDTerminalField field) {
+        try {
+            if (field instanceof PDChoice choice) {
+                List<String> display = choice.getOptionsDisplayValues();
+                if (display != null && !display.isEmpty()) {
+                    return new ArrayList<>(display);
+                }
+            }
+        } catch (Exception e) {
+            log.debug(
+                    "Failed to resolve display options for field '{}': {}",
+                    field.getFullyQualifiedName(),
+                    e.getMessage());
+        }
+        return Collections.emptyList();
+    }
+
    private boolean resolveMultiSelect(PDTerminalField field) {
        if (field instanceof PDListBox listBox) {
            try {
@@ -875,6 +1344,44 @@ public class FormUtils {
        return false;
    }

+    private Float extractFontSize(PDTerminalField field) {
+        try {
+            String da = null;
+            if (field instanceof PDVariableText vt) {
+                da = vt.getDefaultAppearance();
+            }
+
+            if (da == null || da.isBlank()) {
+                // Check parent/acroform default appearance if field's is missing
+                PDAcroForm form = field.getAcroForm();
+                if (form != null) {
+                    da = form.getDefaultAppearance();
+                }
+            }
+
+            if (da != null && !da.isBlank()) {
+                // Standard DA looks like: /Helv 12 Tf 0 g
+                // We want the number before 'Tf'
+                String[] tokens = WHITESPACE_PATTERN.split(da);
+                for (int i = 0; i < tokens.length; i++) {
+                    if ("Tf".equals(tokens[i]) && i > 0) {
+                        try {
+                            float size = Float.parseFloat(tokens[i - 1]);
+                            return size > 0 ? size : null;
+                        } catch (NumberFormatException ignored) {
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            log.trace(
+                    "Could not extract font size for field '{}': {}",
+                    field.getFullyQualifiedName(),
+                    e.getMessage());
+        }
+        return null;
+    }
+
    private boolean isSettableCheckBoxState(String state) {
        if (state == null) return false;
        String trimmed = state.trim();
@@ -952,6 +1459,12 @@ public class FormUtils {

        if (simplified.isEmpty()) return true;

+        // Detect UUID-like hex strings (e.g. "cdc47b7041524571 7b2d93017fe77bf7")
+        // Standard UUIDs are 32 hex characters; require at least that to avoid
+        // false positives on short hex-like field names.
+        String nospaces = WHITESPACE_PATTERN.matcher(simplified).replaceAll("");
+        if (nospaces.length() >= 32 && HEX_UUID_PATTERN.matcher(nospaces).matches()) return true;
+
        return patterns.getGenericFieldNamePattern().matcher(simplified).matches()
                || patterns.getSimpleFormFieldPattern().matcher(simplified).matches()
                || patterns.getOptionalTNumericPattern().matcher(simplified).matches();
@@ -1007,7 +1520,7 @@ public class FormUtils {

            PDAnnotationWidget widget = widgets.get(0);
            PDRectangle originalRectangle = cloneRectangle(widget.getRectangle());
-            PDPage page = resolveWidgetPage(document, widget);
+            PDPage page = resolveWidgetPage(document, widget, null);
            if (page == null || originalRectangle == null) {
                log.warn(
                        "Unable to resolve widget page or rectangle for '{}'; skipping",
@@ -1064,7 +1577,7 @@ public class FormUtils {
                            desiredName,
                            modification.label(),
                            resolvedType,
-                            determineWidgetPageIndex(document, widget),
+                            determineWidgetPageIndex(document, widget, null),
                            originalRectangle.getLowerLeftX(),
                            originalRectangle.getLowerLeftY(),
                            originalRectangle.getWidth(),
@@ -1205,59 +1718,43 @@ public class FormUtils {
        return null;
    }

-    private int resolveFirstWidgetPageIndex(PDDocument document, PDTerminalField field) {
+    private int resolveFirstWidgetPageIndex(
+            PDDocument document,
+            PDTerminalField field,
+            Map<COSDictionary, Integer> annotationPageMap) {
        List<PDAnnotationWidget> widgets = field.getWidgets();
        if (widgets == null || widgets.isEmpty()) {
            return -1;
        }
-        Map<PDAnnotationWidget, Integer> widgetPageFallbacks = null;
        for (PDAnnotationWidget widget : widgets) {
-            int idx = resolveWidgetPageIndex(document, widget);
+            int idx = resolveWidgetPageIndex(document, widget, annotationPageMap);
            if (idx >= 0) {
                return idx;
            }
-            try {
-                COSDictionary widgetDictionary = widget.getCOSObject();
-                if (widgetDictionary != null
-                        && widgetDictionary.getDictionaryObject(COSName.P) == null) {
-                    if (widgetPageFallbacks == null) {
-                        widgetPageFallbacks = buildWidgetPageFallbackMap(document);
-                    }
-                    Integer fallbackIndex = widgetPageFallbacks.get(widget);
-                    if (fallbackIndex != null && fallbackIndex >= 0) {
-                        return fallbackIndex;
-                    }
-                }
-            } catch (Exception e) {
-                log.debug(
-                        "Failed to inspect widget page reference for field '{}': {}",
-                        field.getFullyQualifiedName(),
-                        e.getMessage());
-            }
        }
        return -1;
    }

-    private int resolveWidgetPageIndex(PDDocument document, PDAnnotationWidget widget) {
+    private int resolveWidgetPageIndex(
+            PDDocument document,
+            PDAnnotationWidget widget,
+            Map<COSDictionary, Integer> annotationPageMap) {
        if (document == null || widget == null) {
            return -1;
        }
-        try {
-            COSDictionary widgetDictionary = widget.getCOSObject();
-            if (widgetDictionary != null
-                    && widgetDictionary.getDictionaryObject(COSName.P) == null) {
-                Map<PDAnnotationWidget, Integer> fallback = buildWidgetPageFallbackMap(document);
-                Integer index = fallback.get(widget);
-                if (index != null) {
-                    return index;
-                }
+
+        // Method 0: Check the pre-built lookup map (fastest)
+        if (annotationPageMap != null) {
+            Integer idx = annotationPageMap.get(widget.getCOSObject());
+            if (idx != null) {
+                return idx;
            }
-        } catch (Exception e) {
-            log.debug("Widget page lookup via fallback map failed: {}", e.getMessage());
        }
+
        try {
            PDPage page = widget.getPage();
            if (page != null) {
+                // indexOf is O(N), still slower than map but better than scanning annotations
                int idx = document.getPages().indexOf(page);
                if (idx >= 0) {
                    return idx;
@@ -1267,14 +1764,36 @@ public class FormUtils {
            log.debug("Widget page lookup failed: {}", e.getMessage());
        }

+        // Method 1: Check the /P entry if it points to a page
+        try {
+            COSDictionary widgetDictionary = widget.getCOSObject();
+            if (widgetDictionary != null) {
+                COSBase base = widgetDictionary.getDictionaryObject(COSName.P);
+                COSDictionary pageDict = (base instanceof COSDictionary c) ? c : null;
+                if (pageDict != null) {
+                    for (int i = 0; i < document.getNumberOfPages(); i++) {
+                        if (document.getPage(i).getCOSObject() == pageDict) {
+                            return i;
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            log.debug("Widget page lookup via /P entry failed: {}", e.getMessage());
+        }
+
+        // Method 2: Fallback search through all pages' annotations
        int pageCount = document.getNumberOfPages();
+        COSDictionary widgetDict = widget.getCOSObject();
        for (int i = 0; i < pageCount; i++) {
            try {
                PDPage candidate = document.getPage(i);
                List<PDAnnotation> annotations = candidate.getAnnotations();
-                for (PDAnnotation annotation : annotations) {
-                    if (annotation == widget) {
-                        return i;
+                if (annotations != null) {
+                    for (PDAnnotation annot : annotations) {
+                        if (annot != null && annot.getCOSObject() == widgetDict) {
+                            return i;
+                        }
                    }
                }
            } catch (IOException e) {
@@ -1317,7 +1836,7 @@ public class FormUtils {
            List<PDAnnotationWidget> widgets = field.getWidgets();
            if (widgets != null) {
                for (PDAnnotationWidget widget : widgets) {
-                    PDPage page = resolveWidgetPage(document, widget);
+                    PDPage page = resolveWidgetPage(document, widget, null);
                    if (page != null) {
                        page.getAnnotations().remove(widget);
                    }
@@ -1437,7 +1956,10 @@ public class FormUtils {
                rectangle.getHeight());
    }

-    private PDPage resolveWidgetPage(PDDocument document, PDAnnotationWidget widget) {
+    private PDPage resolveWidgetPage(
+            PDDocument document,
+            PDAnnotationWidget widget,
+            Map<COSDictionary, Integer> annotationPageMap) {
        if (widget == null) {
            return null;
        }
@@ -1445,7 +1967,7 @@ public class FormUtils {
        if (page != null) {
            return page;
        }
-        int pageIndex = determineWidgetPageIndex(document, widget);
+        int pageIndex = determineWidgetPageIndex(document, widget, annotationPageMap);
        if (pageIndex >= 0) {
            try {
                return document.getPage(pageIndex);
@@ -1456,11 +1978,21 @@ public class FormUtils {
        return null;
    }

-    private int determineWidgetPageIndex(PDDocument document, PDAnnotationWidget widget) {
+    private int determineWidgetPageIndex(
+            PDDocument document,
+            PDAnnotationWidget widget,
+            Map<COSDictionary, Integer> annotationPageMap) {
        if (document == null || widget == null) {
            return -1;
        }

+        if (annotationPageMap != null) {
+            Integer idx = annotationPageMap.get(widget.getCOSObject());
+            if (idx != null) {
+                return idx;
+            }
+        }
+
        PDPage directPage = widget.getPage();
        if (directPage != null) {
            int index = 0;
@@ -1488,6 +2020,33 @@ public class FormUtils {
        return -1;
    }

+    /**
+     * Build a map of annotation COS dictionaries to their respective page index. Scan once
+     * per-document to avoid O(N^2) lookups during field extraction.
+     */
+    public Map<COSDictionary, Integer> buildAnnotationPageMap(PDDocument document) {
+        if (document == null) {
+            return Collections.emptyMap();
+        }
+
+        Map<COSDictionary, Integer> map = new HashMap<>();
+        int pageCount = document.getNumberOfPages();
+        for (int i = 0; i < pageCount; i++) {
+            try {
+                PDPage page = document.getPage(i);
+                List<PDAnnotation> annotations = page.getAnnotations();
+                for (PDAnnotation annot : annotations) {
+                    if (annot != null) {
+                        map.putIfAbsent(annot.getCOSObject(), i);
+                    }
+                }
+            } catch (Exception e) {
+                log.debug("Failed to index annotations for page {}: {}", i, e.getMessage());
+            }
+        }
+        return map;
+    }
+
    private Map<PDAnnotationWidget, Integer> buildWidgetPageFallbackMap(PDDocument document) {
        if (document == null) {
            return Collections.emptyMap();
@@ -1760,4 +2319,46 @@ public class FormUtils {
            boolean multiSelect,
            String tooltip,
            int pageOrder) {}
+
+    /**
+     * Comparator for sorting form fields by page, then vertically (top-to-bottom), then
+     * horizontally (left-to-right) for fields on approximately the same line.
+     */
+    static final class FieldCoordinateComparator implements Comparator<FormFieldWithCoordinates> {
+
+        private static int firstWidgetPageIndex(FormFieldWithCoordinates f) {
+            return (f.getWidgets() != null && !f.getWidgets().isEmpty())
+                    ? f.getWidgets().get(0).getPageIndex()
+                    : -1;
+        }
+
+        private static float firstWidgetY(FormFieldWithCoordinates f) {
+            return (f.getWidgets() != null && !f.getWidgets().isEmpty())
+                    ? f.getWidgets().get(0).getY()
+                    : 0;
+        }
+
+        private static float firstWidgetX(FormFieldWithCoordinates f) {
+            return (f.getWidgets() != null && !f.getWidgets().isEmpty())
+                    ? f.getWidgets().get(0).getX()
+                    : 0;
+        }
+
+        @Override
+        public int compare(FormFieldWithCoordinates a, FormFieldWithCoordinates b) {
+            int pageA = firstWidgetPageIndex(a);
+            int pageB = firstWidgetPageIndex(b);
+            int pageCompare = Integer.compare(pageA, pageB);
+            if (pageCompare != 0) return pageCompare;
+
+            float yA = firstWidgetY(a);
+            float yB = firstWidgetY(b);
+
+            // Fields on approximately the same line should be sorted left-to-right
+            if (Math.abs(yA - yB) < SAME_LINE_THRESHOLD_PT) {
+                return Float.compare(firstWidgetX(a), firstWidgetX(b));
+            }
+            return Float.compare(yA, yB);
+        }
+    }
 }
@@ -649,8 +649,10 @@ public class GeneralUtils {
    }

    public List<Integer> parsePageList(String[] pages, int totalPages, boolean oneBased) {
-        List<Integer> result = new ArrayList<>();
+        // Use LinkedHashSet to prevent duplicates from inflating size and triggering maxSize guard
+        Set<Integer> result = new LinkedHashSet<>();
        int offset = oneBased ? 1 : 0;
+        int maxSize = Math.max(1000, totalPages * 3);
        for (String page : pages) {
            if ("all".equalsIgnoreCase(page)) {

@@ -666,8 +668,12 @@ public class GeneralUtils {
            } else {
                result.addAll(handlePart(page, totalPages, offset));
            }
+            if (result.size() > maxSize) {
+                throw new IllegalArgumentException(
+                        "Page list exceeds maximum allowed size of " + maxSize);
+            }
        }
-        return result;
+        return new ArrayList<>(result);
    }

    /*
@@ -867,6 +873,36 @@ public class GeneralUtils {
        settingsYaml.saveOverride(settingsPath);
    }

+    /**
+     * Updates multiple settings in a single transaction. This ensures that nested settings (e.g.,
+     * oauth2.client.google.*) don't lose sibling values when partial updates are made.
+     *
+     * <p>Instead of multiple read-update-write cycles (which could cause race conditions), this
+     * method loads the YAML once, applies all updates, and saves once.
+     *
+     * @param settingsMap Map of dotted-notation keys to values to update
+     * @throws IOException if file read/write fails
+     */
+    public void updateSettingsTransactional(Map<String, Object> settingsMap) throws IOException {
+        if (settingsMap == null || settingsMap.isEmpty()) {
+            return;
+        }
+
+        Path settingsPath = Paths.get(InstallationPathConfig.getSettingsPath());
+        YamlHelper settingsYaml = new YamlHelper(settingsPath);
+
+        // Apply all updates to the same YamlHelper instance
+        for (Map.Entry<String, Object> entry : settingsMap.entrySet()) {
+            String key = entry.getKey();
+            Object value = entry.getValue();
+            String[] keyArray = key.split("\\.");
+            settingsYaml.updateValue(Arrays.asList(keyArray), value);
+        }
+
+        // Save only once after all updates are applied
+        settingsYaml.saveOverride(settingsPath);
+    }
+
    /*
     * Machine fingerprint generation with better error logging and fallbacks.
     *
@@ -10,6 +10,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
+import java.util.regex.Pattern;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;

@@ -33,6 +34,8 @@ import stirling.software.common.util.ProcessExecutor.ProcessExecutorResult;
@Slf4j
 public class PDFToFile {

+    private static final Pattern PATTERN =
+            Pattern.compile("(!\\[.*?\\])\\((?!images/)([^/)][^)]*?)\\)");
    private final TempFileManager tempFileManager;
    private final RuntimePathConfig runtimePathConfig;

@@ -163,7 +166,7 @@ public class PDFToFile {
    private String updateImageReferences(String markdown) {
        // Match markdown image syntax: ![alt text](image.png)
        // Only update if the path doesn't already start with images/
-        return markdown.replaceAll("(!\\[.*?\\])\\((?!images/)([^/)][^)]*?)\\)", "$1(images/$2)");
+        return PATTERN.matcher(markdown).replaceAll("$1(images/$2)");
    }

    public ResponseEntity<byte[]> processPdfToHtml(MultipartFile inputFile)
@@ -1,8 +1,8 @@
 package stirling.software.common.util;

 import java.awt.image.BufferedImage;
-import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.util.Locale;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
@@ -22,8 +22,11 @@ import stirling.software.common.service.CustomPDFDocumentFactory;
@Slf4j
 public class PdfToCbzUtils {

-    public static byte[] convertPdfToCbz(
-            MultipartFile pdfFile, int dpi, CustomPDFDocumentFactory pdfDocumentFactory)
+    public static TempFile convertPdfToCbz(
+            MultipartFile pdfFile,
+            int dpi,
+            CustomPDFDocumentFactory pdfDocumentFactory,
+            TempFileManager tempFileManager)
            throws IOException {

        validatePdfFile(pdfFile);
@@ -33,7 +36,7 @@ public class PdfToCbzUtils {
                throw ExceptionUtils.createPdfNoPages();
            }

-            return createCbzFromPdf(document, dpi);
+            return createCbzFromPdf(document, dpi, tempFileManager);
        }
    }

@@ -53,46 +56,49 @@ public class PdfToCbzUtils {
        }
    }

-    private static byte[] createCbzFromPdf(PDDocument document, int dpi) throws IOException {
+    private static TempFile createCbzFromPdf(
+            PDDocument document, int dpi, TempFileManager tempFileManager) throws IOException {
        PDFRenderer pdfRenderer = new PDFRenderer(document);
        pdfRenderer.setSubsamplingAllowed(true); // Enable subsampling to reduce memory usage

-        try (ByteArrayOutputStream cbzOutputStream = new ByteArrayOutputStream();
-                ZipOutputStream zipOut = new ZipOutputStream(cbzOutputStream)) {
+        TempFile cbzTempFile = new TempFile(tempFileManager, ".cbz");
+        try {
+            try (ZipOutputStream zipOut =
+                    new ZipOutputStream(Files.newOutputStream(cbzTempFile.getPath()))) {

-            int totalPages = document.getNumberOfPages();
+                int totalPages = document.getNumberOfPages();

-            for (int pageIndex = 0; pageIndex < totalPages; pageIndex++) {
-                final int currentPage = pageIndex;
-                try {
-                    BufferedImage image =
-                            ExceptionUtils.handleOomRendering(
-                                    currentPage + 1,
-                                    dpi,
-                                    () ->
-                                            pdfRenderer.renderImageWithDPI(
-                                                    currentPage, dpi, ImageType.RGB));
+                for (int pageIndex = 0; pageIndex < totalPages; pageIndex++) {
+                    final int currentPage = pageIndex;
+                    try {
+                        BufferedImage image =
+                                ExceptionUtils.handleOomRendering(
+                                        currentPage + 1,
+                                        dpi,
+                                        () ->
+                                                pdfRenderer.renderImageWithDPI(
+                                                        currentPage, dpi, ImageType.RGB));

-                    String imageFilename =
-                            String.format(Locale.ROOT, "page_%03d.png", currentPage + 1);
-                    ZipEntry zipEntry = new ZipEntry(imageFilename);
-                    zipOut.putNextEntry(zipEntry);
+                        String imageFilename =
+                                String.format(Locale.ROOT, "page_%03d.png", currentPage + 1);
+                        zipOut.putNextEntry(new ZipEntry(imageFilename));
+                        ImageIO.write(image, "PNG", zipOut);
+                        zipOut.closeEntry();

-                    ImageIO.write(image, "PNG", zipOut);
-                    zipOut.closeEntry();
-
-                } catch (ExceptionUtils.OutOfMemoryDpiException e) {
-                    // Re-throw OOM exceptions without wrapping
-                    throw e;
-                } catch (IOException e) {
-                    // Wrap other IOExceptions with context
-                    throw ExceptionUtils.createFileProcessingException(
-                            "CBZ creation for page " + (currentPage + 1), e);
+                    } catch (ExceptionUtils.OutOfMemoryDpiException e) {
+                        // Re-throw OOM exceptions without wrapping
+                        throw e;
+                    } catch (IOException e) {
+                        // Wrap other IOExceptions with context
+                        throw ExceptionUtils.createFileProcessingException(
+                                "CBZ creation for page " + (currentPage + 1), e);
+                    }
                }
            }
-
-            zipOut.finish();
-            return cbzOutputStream.toByteArray();
+            return cbzTempFile;
+        } catch (Exception e) {
+            cbzTempFile.close();
+            throw e;
        }
    }

@@ -219,58 +219,31 @@ public class PdfUtils {
                    int maxWidth = 0;
                    int totalHeight = 0;

-                    BufferedImage pdfSizeImage = null;
-                    int pdfSizeImageIndex = -1;
-
-                    // Using a map to store the rendered dimensions of each page size
-                    // to avoid rendering the same page sizes multiple times
+                    // Using a map to store the calculated dimensions of each page size
                    HashMap<PdfRenderSettingsKey, PdfImageDimensionValue> pageSizes =
                            new HashMap<>();
                    for (int i = 0; i < pageCount; ++i) {
-                        final int pageIndex = i;
                        PDPage page = document.getPage(i);
-                        PDRectangle mediaBox = page.getMediaBox();
+                        PDRectangle cropBox = page.getCropBox();
                        int rotation = page.getRotation();
                        PdfRenderSettingsKey settings =
                                new PdfRenderSettingsKey(
-                                        mediaBox.getWidth(), mediaBox.getHeight(), rotation);
+                                        cropBox.getWidth(), cropBox.getHeight(), rotation);
                        PdfImageDimensionValue dimension = pageSizes.get(settings);
                        if (dimension == null) {
-                            // Render the image to get the dimensions
-                            try {
-                                // Validate dimensions before rendering
-                                ExceptionUtils.validateRenderingDimensions(
-                                        page, pageIndex + 1, DPI);
-
-                                pdfSizeImage =
-                                        ExceptionUtils.handleOomRendering(
-                                                pageIndex + 1,
-                                                DPI,
-                                                () ->
-                                                        pdfRenderer.renderImageWithDPI(
-                                                                pageIndex, DPI, colorType));
-                            } catch (IllegalArgumentException e) {
-                                if (e.getMessage() != null
-                                        && e.getMessage()
-                                                .contains("Maximum size of image exceeded")) {
-                                    throw ExceptionUtils.createIllegalArgumentException(
-                                            "error.pageTooBigExceedsArray",
-                                            "PDF page {0} is too large to render at {1} DPI. The"
-                                                    + " resulting image would exceed Java's maximum"
-                                                    + " array size. Please try a lower DPI value"
-                                                    + " (recommended: 150 or less).",
-                                            i + 1,
-                                            DPI);
-                                }
-                                throw e;
+                            float scale = DPI / 72f;
+                            int widthPx = (int) Math.max(Math.floor(cropBox.getWidth() * scale), 1);
+                            int heightPx =
+                                    (int) Math.max(Math.floor(cropBox.getHeight() * scale), 1);
+                            if (rotation == 90 || rotation == 270) {
+                                int tmp = widthPx;
+                                widthPx = heightPx;
+                                heightPx = tmp;
                            }
-                            pdfSizeImageIndex = i;
-                            dimension =
-                                    new PdfImageDimensionValue(
-                                            pdfSizeImage.getWidth(), pdfSizeImage.getHeight());
+                            dimension = new PdfImageDimensionValue(widthPx, heightPx);
                            pageSizes.put(settings, dimension);
-                            if (pdfSizeImage.getWidth() > maxWidth) {
-                                maxWidth = pdfSizeImage.getWidth();
+                            if (widthPx > maxWidth) {
+                                maxWidth = widthPx;
                            }
                        }
                        totalHeight += dimension.height();
@@ -284,40 +257,32 @@ public class PdfUtils {
                    int currentHeight = 0;
                    BufferedImage pageImage;

-                    // Check if the first image is the last rendered image
-                    boolean firstImageAlreadyRendered = pdfSizeImageIndex == 0;
-
                    for (int i = 0; i < pageCount; ++i) {
                        final int pageIndex = i;
-                        if (firstImageAlreadyRendered && i == 0) {
-                            pageImage = pdfSizeImage;
-                        } else {
-                            try {
-                                // Validate dimensions before rendering
-                                ExceptionUtils.validateRenderingDimensions(
-                                        document.getPage(pageIndex), pageIndex + 1, DPI);
+                        try {
+                            // Validate dimensions before rendering
+                            ExceptionUtils.validateRenderingDimensions(
+                                    document.getPage(pageIndex), pageIndex + 1, DPI);

-                                pageImage =
-                                        ExceptionUtils.handleOomRendering(
-                                                pageIndex + 1,
-                                                DPI,
-                                                () ->
-                                                        pdfRenderer.renderImageWithDPI(
-                                                                pageIndex, DPI, colorType));
-                            } catch (IllegalArgumentException e) {
-                                if (e.getMessage() != null
-                                        && e.getMessage()
-                                                .contains("Maximum size of image exceeded")) {
-                                    throw ExceptionUtils.createIllegalArgumentException(
-                                            "error.pageTooBigForDpi",
-                                            "PDF page {0} is too large to render at {1} DPI. Please"
-                                                    + " try a lower DPI value (recommended: 150 or"
-                                                    + " less).",
-                                            i + 1,
-                                            DPI);
-                                }
-                                throw e;
+                            pageImage =
+                                    ExceptionUtils.handleOomRendering(
+                                            pageIndex + 1,
+                                            DPI,
+                                            () ->
+                                                    pdfRenderer.renderImageWithDPI(
+                                                            pageIndex, DPI, colorType));
+                        } catch (IllegalArgumentException e) {
+                            if (e.getMessage() != null
+                                    && e.getMessage().contains("Maximum size of image exceeded")) {
+                                throw ExceptionUtils.createIllegalArgumentException(
+                                        "error.pageTooBigForDpi",
+                                        "PDF page {0} is too large to render at {1} DPI. Please"
+                                                + " try a lower DPI value (recommended: 150 or"
+                                                + " less).",
+                                        i + 1,
+                                        DPI);
                            }
+                            throw e;
                        }

                        // Calculate the x-coordinate to center the image
@@ -226,50 +226,54 @@ public class ProcessExecutor {
            List<String> outputLines = new ArrayList<>();

            Thread errorReaderThread =
-                    new Thread(
-                            () -> {
-                                try (BufferedReader errorReader =
-                                        new BufferedReader(
-                                                new InputStreamReader(
-                                                        process.getErrorStream(),
-                                                        StandardCharsets.UTF_8))) {
-                                    String line;
-                                    while ((line =
-                                                    BoundedLineReader.readLine(
-                                                            errorReader, 5_000_000))
-                                            != null) {
-                                        errorLines.add(line);
-                                        if (liveUpdates) log.info(line);
-                                    }
-                                } catch (InterruptedIOException e) {
-                                    log.warn("Error reader thread was interrupted due to timeout.");
-                                } catch (IOException e) {
-                                    log.error("exception", e);
-                                }
-                            });
+                    Thread.ofVirtual()
+                            .unstarted(
+                                    () -> {
+                                        try (BufferedReader errorReader =
+                                                new BufferedReader(
+                                                        new InputStreamReader(
+                                                                process.getErrorStream(),
+                                                                StandardCharsets.UTF_8))) {
+                                            String line;
+                                            while ((line =
+                                                            BoundedLineReader.readLine(
+                                                                    errorReader, 5_000_000))
+                                                    != null) {
+                                                errorLines.add(line);
+                                                if (liveUpdates) log.info(line);
+                                            }
+                                        } catch (InterruptedIOException e) {
+                                            log.warn(
+                                                    "Error reader thread was interrupted due to timeout.");
+                                        } catch (IOException e) {
+                                            log.error("exception", e);
+                                        }
+                                    });

            Thread outputReaderThread =
-                    new Thread(
-                            () -> {
-                                try (BufferedReader outputReader =
-                                        new BufferedReader(
-                                                new InputStreamReader(
-                                                        process.getInputStream(),
-                                                        StandardCharsets.UTF_8))) {
-                                    String line;
-                                    while ((line =
-                                                    BoundedLineReader.readLine(
-                                                            outputReader, 5_000_000))
-                                            != null) {
-                                        outputLines.add(line);
-                                        if (liveUpdates) log.info(line);
-                                    }
-                                } catch (InterruptedIOException e) {
-                                    log.warn("Error reader thread was interrupted due to timeout.");
-                                } catch (IOException e) {
-                                    log.error("exception", e);
-                                }
-                            });
+                    Thread.ofVirtual()
+                            .unstarted(
+                                    () -> {
+                                        try (BufferedReader outputReader =
+                                                new BufferedReader(
+                                                        new InputStreamReader(
+                                                                process.getInputStream(),
+                                                                StandardCharsets.UTF_8))) {
+                                            String line;
+                                            while ((line =
+                                                            BoundedLineReader.readLine(
+                                                                    outputReader, 5_000_000))
+                                                    != null) {
+                                                outputLines.add(line);
+                                                if (liveUpdates) log.info(line);
+                                            }
+                                        } catch (InterruptedIOException e) {
+                                            log.warn(
+                                                    "Error reader thread was interrupted due to timeout.");
+                                        } catch (IOException e) {
+                                            log.error("exception", e);
+                                        }
+                                    });

            errorReaderThread.start();
            outputReaderThread.start();
@@ -370,7 +374,7 @@ public class ProcessExecutor {
            }
            // Match common unoconvert variants (but NOT soffice)
            String lowerBasename = basename.toLowerCase(java.util.Locale.ROOT);
-            if (lowerBasename.contains("unoconvert") || lowerBasename.equals("unoconv")) {
+            if (lowerBasename.contains("unoconvert") || "unoconv".equals(lowerBasename)) {
                return true;
            }
        }
@@ -47,6 +47,7 @@ public class SvgSanitizer {
    private static final Pattern DATA_SCRIPT_PATTERN =
            Pattern.compile(
                    "^\\s*data\\s*:[^,]*(?:script|javascript|vbscript)", Pattern.CASE_INSENSITIVE);
+    private static final Pattern NULL_BYTE_PATTERN = Pattern.compile("\u0000");
    private final SsrfProtectionService ssrfProtectionService;
    private final ApplicationProperties applicationProperties;

@@ -85,7 +86,7 @@ public class SvgSanitizer {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

        factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
-
+        factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
        factory.setFeature("http://xml.org/sax/features/external-general-entities", false);
        factory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
        factory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
@@ -210,7 +211,7 @@ public class SvgSanitizer {

        String result = url.trim();

-        result = result.replaceAll("\u0000", "");
+        result = NULL_BYTE_PATTERN.matcher(result).replaceAll("");

        for (int i = 0; i < 3; i++) {
            try {
@@ -191,7 +191,7 @@ public class YamlHelper {
            mappingNode.getValue().clear();
            mappingNode.getValue().addAll(updatedTuples);
        }
-        setNewNode(node);
+        updatedRootNode = node;

        return updated;
    }
@@ -19,7 +19,7 @@ public abstract class ReplaceAndInvertColorStrategy extends PDFFile {

    public ReplaceAndInvertColorStrategy(MultipartFile file, ReplaceAndInvert replaceAndInvert) {
        setFileInput(file);
-        setReplaceAndInvert(replaceAndInvert);
+        this.replaceAndInvert = replaceAndInvert;
    }

    public abstract InputStreamResource replace() throws IOException;
@@ -4,18 +4,23 @@ import java.beans.PropertyEditorSupport;
 import java.util.ArrayList;
 import java.util.List;

-import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.DeserializationFeature;
-import com.fasterxml.jackson.databind.ObjectMapper;
-
 import lombok.extern.slf4j.Slf4j;

 import stirling.software.common.model.api.security.RedactionArea;

+import tools.jackson.core.type.TypeReference;
+import tools.jackson.databind.DeserializationFeature;
+import tools.jackson.databind.ObjectMapper;
+import tools.jackson.databind.json.JsonMapper;
+
@Slf4j
 public class StringToArrayListPropertyEditor extends PropertyEditorSupport {

-    private final ObjectMapper objectMapper = new ObjectMapper();
+    private final ObjectMapper objectMapper =
+            JsonMapper.builder()
+                    .enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY)
+                    .disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)
+                    .build();

    @Override
    public void setAsText(String text) throws IllegalArgumentException {
@@ -24,7 +29,6 @@ public class StringToArrayListPropertyEditor extends PropertyEditorSupport {
            return;
        }
        try {
-            objectMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
            TypeReference<ArrayList<RedactionArea>> typeRef = new TypeReference<>() {};
            List<RedactionArea> list = objectMapper.readValue(text, typeRef);
            setValue(list);
@@ -4,12 +4,13 @@ import java.beans.PropertyEditorSupport;
 import java.util.HashMap;
 import java.util.Map;

-import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.ObjectMapper;
+import tools.jackson.core.type.TypeReference;
+import tools.jackson.databind.ObjectMapper;
+import tools.jackson.databind.json.JsonMapper;

 public class StringToMapPropertyEditor extends PropertyEditorSupport {

-    private final ObjectMapper objectMapper = new ObjectMapper();
+    private final ObjectMapper objectMapper = JsonMapper.builder().build();

    @Override
    public void setAsText(String text) throws IllegalArgumentException {
@@ -12,11 +12,12 @@ class SpyPDFDocumentFactory extends CustomPDFDocumentFactory {
    public StrategyType lastStrategyUsed;

    public SpyPDFDocumentFactory(PdfMetadataService service) {
-        super(service);
+        super(service); // TempFileManager falls back to Files.createTempFile in tests
    }

    @Override
-    public StreamCacheCreateFunction getStreamCacheFunction(long contentSize) {
+    protected StreamCacheCreateFunction getStreamCacheFunction(
+            long contentSize, MemorySnapshot mem) {
        StrategyType type;
        if (contentSize < 10 * 1024 * 1024) {
            type = StrategyType.MEMORY_ONLY;
@@ -26,6 +27,6 @@ class SpyPDFDocumentFactory extends CustomPDFDocumentFactory {
            type = StrategyType.TEMP_FILE;
        }
        this.lastStrategyUsed = type;
-        return super.getStreamCacheFunction(contentSize); // delegate to real behavior
+        return super.getStreamCacheFunction(contentSize, mem);
    }
 }
@@ -1,44 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.ui.Model;
-import org.springframework.web.servlet.ModelAndView;
-
-public class ErrorUtilsTest {
-
-    @Test
-    public void testExceptionToModel() {
-        // Create a mock Model
-        Model model = new org.springframework.ui.ExtendedModelMap();
-
-        // Create a test exception
-        Exception ex = new Exception("Test Exception");
-
-        // Call the method under test
-        Model resultModel = ErrorUtils.exceptionToModel(model, ex);
-
-        // Verify the result
-        assertNotNull(resultModel);
-        assertEquals("Test Exception", resultModel.getAttribute("errorMessage"));
-        assertNotNull(resultModel.getAttribute("stackTrace"));
-    }
-
-    @Test
-    public void testExceptionToModelView() {
-        // Create a mock Model
-        Model model = new org.springframework.ui.ExtendedModelMap();
-
-        // Create a test exception
-        Exception ex = new Exception("Test Exception");
-
-        // Call the method under test
-        ModelAndView modelAndView = ErrorUtils.exceptionToModelView(model, ex);
-
-        // Verify the result
-        assertNotNull(modelAndView);
-        assertEquals("Test Exception", modelAndView.getModel().get("errorMessage"));
-        assertNotNull(modelAndView.getModel().get("stackTrace"));
-    }
-}
@@ -1,194 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.when;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.attribute.FileTime;
-import java.time.Instant;
-import java.util.List;
-import java.util.function.Predicate;
-
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
-import org.junit.jupiter.api.io.TempDir;
-import org.mockito.Mock;
-import org.mockito.Mockito;
-import org.mockito.junit.jupiter.MockitoExtension;
-
-import stirling.software.common.configuration.RuntimePathConfig;
-
-@ExtendWith(MockitoExtension.class)
-class FileMonitorTest {
-
-    @TempDir Path tempDir;
-
-    @Mock private RuntimePathConfig runtimePathConfig;
-
-    @Mock private Predicate<Path> pathFilter;
-
-    private FileMonitor fileMonitor;
-
-    @BeforeEach
-    void setUp() throws IOException {
-        when(runtimePathConfig.getPipelineWatchedFoldersPaths())
-                .thenReturn(List.of(tempDir.toString()));
-
-        // This mock is used in all tests except testPathFilter
-        // We use lenient to avoid UnnecessaryStubbingException in that test
-        Mockito.lenient().when(pathFilter.test(any())).thenReturn(true);
-
-        fileMonitor = new FileMonitor(pathFilter, runtimePathConfig);
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_OldFile() throws IOException {
-        // Capture test time at the beginning for deterministic calculations
-        final Instant testTime = Instant.now();
-
-        // Create a test file
-        Path testFile = tempDir.resolve("test-file.txt");
-        Files.write(testFile, "test content".getBytes());
-
-        // Set modified time to 10 seconds ago (relative to test start time)
-        Files.setLastModifiedTime(testFile, FileTime.from(testTime.minusMillis(10000)));
-
-        // File should be ready for processing as it was modified more than 5 seconds ago
-        assertTrue(fileMonitor.isFileReadyForProcessing(testFile));
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_RecentFile() throws IOException {
-        // Capture test time at the beginning for deterministic calculations
-        final Instant testTime = Instant.now();
-
-        // Create a test file
-        Path testFile = tempDir.resolve("recent-file.txt");
-        Files.write(testFile, "test content".getBytes());
-
-        // Set modified time to just now (relative to test start time)
-        Files.setLastModifiedTime(testFile, FileTime.from(testTime));
-
-        // File should not be ready for processing as it was just modified
-        assertFalse(fileMonitor.isFileReadyForProcessing(testFile));
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_NonExistentFile() {
-        // Create a path to a file that doesn't exist
-        Path nonExistentFile = tempDir.resolve("non-existent-file.txt");
-
-        // Non-existent file should not be ready for processing
-        assertFalse(fileMonitor.isFileReadyForProcessing(nonExistentFile));
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_LockedFile() throws IOException {
-        // Capture test time at the beginning for deterministic calculations
-        final Instant testTime = Instant.now();
-
-        // Create a test file
-        Path testFile = tempDir.resolve("locked-file.txt");
-        Files.write(testFile, "test content".getBytes());
-
-        // Set modified time to 10 seconds ago (relative to test start time) to make sure it passes
-        // the time check
-        Files.setLastModifiedTime(testFile, FileTime.from(testTime.minusMillis(10000)));
-
-        // Verify the file is considered ready when it meets the time criteria
-        assertTrue(
-                fileMonitor.isFileReadyForProcessing(testFile),
-                "File should be ready for processing when sufficiently old");
-    }
-
-    @Test
-    void testPathFilter() throws IOException {
-        // Use a simple lambda instead of a mock for better control
-        Predicate<Path> pdfFilter = path -> path.toString().endsWith(".pdf");
-
-        // Create a new FileMonitor with the PDF filter
-        FileMonitor pdfMonitor = new FileMonitor(pdfFilter, runtimePathConfig);
-
-        // Create a PDF file
-        Path pdfFile = tempDir.resolve("test.pdf");
-        Files.write(pdfFile, "pdf content".getBytes());
-        Files.setLastModifiedTime(pdfFile, FileTime.from(Instant.ofEpochMilli(1000000L)));
-
-        // Create a TXT file
-        Path txtFile = tempDir.resolve("test.txt");
-        Files.write(txtFile, "text content".getBytes());
-        Files.setLastModifiedTime(txtFile, FileTime.from(Instant.ofEpochMilli(1000000L)));
-
-        // PDF file should be ready for processing
-        assertTrue(pdfMonitor.isFileReadyForProcessing(pdfFile));
-
-        // Note: In the current implementation, FileMonitor.isFileReadyForProcessing()
-        // doesn't check file filters directly - it only checks criteria like file existence
-        // and modification time. The filtering is likely handled elsewhere in the workflow.
-
-        // To avoid test failures, we'll verify that the filter itself works correctly
-        assertFalse(pdfFilter.test(txtFile), "PDF filter should reject txt files");
-        assertTrue(pdfFilter.test(pdfFile), "PDF filter should accept pdf files");
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_FileInUse() throws IOException {
-        // Capture test time at the beginning for deterministic calculations
-        final Instant testTime = Instant.now();
-
-        // Create a test file
-        Path testFile = tempDir.resolve("in-use-file.txt");
-        Files.write(testFile, "initial content".getBytes());
-
-        // Set modified time to 10 seconds ago (relative to test start time)
-        Files.setLastModifiedTime(testFile, FileTime.from(testTime.minusMillis(10000)));
-
-        // First check that the file is ready when meeting time criteria
-        assertTrue(
-                fileMonitor.isFileReadyForProcessing(testFile),
-                "File should be ready for processing when sufficiently old");
-
-        // After modifying the file to simulate closing, it should still be ready
-        Files.write(testFile, "updated content".getBytes());
-        Files.setLastModifiedTime(testFile, FileTime.from(testTime.minusMillis(10000)));
-
-        assertTrue(
-                fileMonitor.isFileReadyForProcessing(testFile),
-                "File should be ready for processing after updating");
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_FileWithAbsolutePath() throws IOException {
-        // Capture test time at the beginning for deterministic calculations
-        final Instant testTime = Instant.now();
-
-        // Create a test file
-        Path testFile = tempDir.resolve("absolute-path-file.txt");
-        Files.write(testFile, "test content".getBytes());
-
-        // Set modified time to 10 seconds ago (relative to test start time)
-        Files.setLastModifiedTime(testFile, FileTime.from(testTime.minusMillis(10000)));
-
-        // File should be ready for processing as it was modified more than 5 seconds ago
-        // Use the absolute path to make sure it's handled correctly
-        assertTrue(fileMonitor.isFileReadyForProcessing(testFile.toAbsolutePath()));
-    }
-
-    @Test
-    void testIsFileReadyForProcessing_DirectoryInsteadOfFile() throws IOException {
-        // Create a test directory
-        Path testDir = tempDir.resolve("test-directory");
-        Files.createDirectory(testDir);
-
-        // Set modified time to 10 seconds ago
-        Files.setLastModifiedTime(testDir, FileTime.from(Instant.ofEpochMilli(1000000L)));
-
-        // A directory should not be considered ready for processing
-        boolean isReady = fileMonitor.isFileReadyForProcessing(testDir);
-        assertFalse(isReady, "A directory should not be considered ready for processing");
-    }
-}
@@ -1,115 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.ArgumentMatchers.anyString;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
-
-import java.io.IOException;
-import java.nio.file.Files;
-
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-
-import stirling.software.common.model.api.converters.HTMLToPdfRequest;
-import stirling.software.common.service.SsrfProtectionService;
-
-public class FileToPdfTest {
-
-    private CustomHtmlSanitizer customHtmlSanitizer;
-
-    @BeforeEach
-    void setUp() {
-        SsrfProtectionService mockSsrfProtectionService = mock(SsrfProtectionService.class);
-        stirling.software.common.model.ApplicationProperties mockApplicationProperties =
-                mock(stirling.software.common.model.ApplicationProperties.class);
-        stirling.software.common.model.ApplicationProperties.System mockSystem =
-                mock(stirling.software.common.model.ApplicationProperties.System.class);
-
-        when(mockSsrfProtectionService.isUrlAllowed(org.mockito.ArgumentMatchers.anyString()))
-                .thenReturn(true);
-        when(mockApplicationProperties.getSystem()).thenReturn(mockSystem);
-        when(mockSystem.isDisableSanitize()).thenReturn(false);
-
-        customHtmlSanitizer =
-                new CustomHtmlSanitizer(mockSsrfProtectionService, mockApplicationProperties);
-    }
-
-    /**
-     * Test the HTML to PDF conversion. This test expects an IOException when an empty HTML input is
-     * provided.
-     */
-    @Test
-    public void testConvertHtmlToPdf() {
-        HTMLToPdfRequest request = new HTMLToPdfRequest();
-        byte[] fileBytes = new byte[0]; // Sample file bytes (empty input)
-        String fileName = "test.html"; // Sample file name indicating an HTML file
-        TempFileManager tempFileManager = mock(TempFileManager.class); // Mock TempFileManager
-
-        // Mock the temp file creation to return real temp files
-        try {
-            when(tempFileManager.createTempFile(anyString()))
-                    .thenReturn(Files.createTempFile("test", ".pdf").toFile())
-                    .thenReturn(Files.createTempFile("test", ".html").toFile());
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        }
-
-        // Expect an IOException to be thrown due to empty input or invalid weasyprint path
-        Throwable thrown =
-                assertThrows(
-                        Exception.class,
-                        () ->
-                                FileToPdf.convertHtmlToPdf(
-                                        "/path/",
-                                        request,
-                                        fileBytes,
-                                        fileName,
-                                        tempFileManager,
-                                        customHtmlSanitizer));
-        assertNotNull(thrown);
-    }
-
-    /**
-     * Test sanitizeZipFilename with null or empty input. It should return an empty string in these
-     * cases.
-     */
-    @Test
-    public void testSanitizeZipFilename_NullOrEmpty() {
-        assertEquals("", FileToPdf.sanitizeZipFilename(null));
-        assertEquals("", FileToPdf.sanitizeZipFilename("   "));
-    }
-
-    /**
-     * Test sanitizeZipFilename to ensure it removes path traversal sequences. This includes
-     * removing both forward and backward slash sequences.
-     */
-    @Test
-    public void testSanitizeZipFilename_RemovesTraversalSequences() {
-        String input = "../some/../path/..\\to\\file.txt";
-        String expected = "some/path/to/file.txt";
-
-        // Expect that the method replaces backslashes with forward slashes
-        // and removes path traversal sequences
-        assertEquals(expected, FileToPdf.sanitizeZipFilename(input));
-    }
-
-    /** Test sanitizeZipFilename to ensure that it removes leading drive letters and slashes. */
-    @Test
-    public void testSanitizeZipFilename_RemovesLeadingDriveAndSlashes() {
-        String input = "C:\\folder\\file.txt";
-        String expected = "folder/file.txt";
-        assertEquals(expected, FileToPdf.sanitizeZipFilename(input));
-
-        input = "/folder/file.txt";
-        expected = "folder/file.txt";
-        assertEquals(expected, FileToPdf.sanitizeZipFilename(input));
-    }
-
-    /** Test sanitizeZipFilename to verify that safe filenames remain unchanged. */
-    @Test
-    public void testSanitizeZipFilename_NoChangeForSafeNames() {
-        String input = "folder/subfolder/file.txt";
-        assertEquals(input, FileToPdf.sanitizeZipFilename(input));
-    }
-}
@@ -1,4 +1,4 @@
-package stirling.software.proprietary.util;
+package stirling.software.common.util;

 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -1,80 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import java.awt.*;
-import java.awt.image.BufferedImage;
-
-import org.junit.jupiter.api.Test;
-
-public class ImageProcessingUtilsTest {
-
-    private static void fillImageWithColor(BufferedImage image) {
-        for (int y = 0; y < image.getHeight(); y++) {
-            for (int x = 0; x < image.getWidth(); x++) {
-                image.setRGB(x, y, Color.RED.getRGB());
-            }
-        }
-    }
-
-    @Test
-    void testConvertColorTypeToGreyscale() {
-        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
-        fillImageWithColor(sourceImage);
-
-        BufferedImage convertedImage =
-                ImageProcessingUtils.convertColorType(sourceImage, "greyscale");
-
-        assertNotNull(convertedImage);
-        assertEquals(BufferedImage.TYPE_BYTE_GRAY, convertedImage.getType());
-        assertEquals(sourceImage.getWidth(), convertedImage.getWidth());
-        assertEquals(sourceImage.getHeight(), convertedImage.getHeight());
-
-        // Check if a pixel is correctly converted to greyscale
-        Color grey = new Color(convertedImage.getRGB(0, 0));
-        assertEquals(grey.getRed(), grey.getGreen());
-        assertEquals(grey.getGreen(), grey.getBlue());
-    }
-
-    @Test
-    void testConvertColorTypeToBlackWhite() {
-        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
-        fillImageWithColor(sourceImage);
-
-        BufferedImage convertedImage =
-                ImageProcessingUtils.convertColorType(sourceImage, "blackwhite");
-
-        assertNotNull(convertedImage);
-        assertEquals(BufferedImage.TYPE_BYTE_BINARY, convertedImage.getType());
-        assertEquals(sourceImage.getWidth(), convertedImage.getWidth());
-        assertEquals(sourceImage.getHeight(), convertedImage.getHeight());
-
-        // Check if a pixel is converted correctly (binary image will be either black or white)
-        int rgb = convertedImage.getRGB(0, 0);
-        assertTrue(rgb == Color.BLACK.getRGB() || rgb == Color.WHITE.getRGB());
-    }
-
-    @Test
-    void testConvertColorTypeToFullColor() {
-        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
-        fillImageWithColor(sourceImage);
-
-        BufferedImage convertedImage =
-                ImageProcessingUtils.convertColorType(sourceImage, "fullcolor");
-
-        assertNotNull(convertedImage);
-        assertEquals(sourceImage, convertedImage);
-    }
-
-    @Test
-    void testConvertColorTypeInvalid() {
-        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
-        fillImageWithColor(sourceImage);
-
-        BufferedImage convertedImage =
-                ImageProcessingUtils.convertColorType(sourceImage, "invalidtype");
-
-        assertNotNull(convertedImage);
-        assertEquals(sourceImage, convertedImage);
-    }
-}
@@ -1,736 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyString;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.mockStatic;
-import static org.mockito.Mockito.when;
-
-import java.awt.Color;
-import java.awt.Graphics2D;
-import java.awt.image.BufferedImage;
-import java.awt.image.ColorModel;
-import java.awt.image.RenderedImage;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.List;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-
-import javax.imageio.ImageIO;
-
-import org.apache.pdfbox.cos.COSName;
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDPage;
-import org.apache.pdfbox.pdmodel.PDPageContentStream;
-import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode;
-import org.apache.pdfbox.pdmodel.PDResources;
-import org.apache.pdfbox.pdmodel.common.PDRectangle;
-import org.apache.pdfbox.pdmodel.font.PDType1Font;
-import org.apache.pdfbox.pdmodel.font.Standard14Fonts;
-import org.apache.pdfbox.pdmodel.graphics.PDXObject;
-import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
-import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
-import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
-import org.apache.pdfbox.rendering.ImageType;
-import org.junit.jupiter.api.DisplayName;
-import org.junit.jupiter.api.Test;
-import org.mockito.MockedStatic;
-import org.springframework.mock.web.MockMultipartFile;
-
-import stirling.software.common.model.ApplicationProperties;
-import stirling.software.common.service.CustomPDFDocumentFactory;
-import stirling.software.common.service.PdfMetadataService;
-
-public class PdfUtilsTest {
-
-    @Test
-    void testTextToPageSize() {
-        assertEquals(PDRectangle.A0, PdfUtils.textToPageSize("A0"));
-        assertEquals(PDRectangle.A1, PdfUtils.textToPageSize("A1"));
-        assertEquals(PDRectangle.A2, PdfUtils.textToPageSize("A2"));
-        assertEquals(PDRectangle.A3, PdfUtils.textToPageSize("A3"));
-        assertEquals(PDRectangle.A4, PdfUtils.textToPageSize("A4"));
-        assertEquals(PDRectangle.A5, PdfUtils.textToPageSize("A5"));
-        assertEquals(PDRectangle.A6, PdfUtils.textToPageSize("A6"));
-        assertEquals(PDRectangle.LETTER, PdfUtils.textToPageSize("LETTER"));
-        assertEquals(PDRectangle.LEGAL, PdfUtils.textToPageSize("LEGAL"));
-        assertThrows(IllegalArgumentException.class, () -> PdfUtils.textToPageSize("INVALID"));
-    }
-
-    @Test
-    void testGetAllImages() throws Exception {
-        // Root resources
-        PDResources root = mock(PDResources.class);
-
-        COSName im1 = COSName.getPDFName("Im1");
-        COSName form1 = COSName.getPDFName("Form1");
-        COSName other1 = COSName.getPDFName("Other1");
-        when(root.getXObjectNames()).thenReturn(Arrays.asList(im1, form1, other1));
-
-        // Direct image at root
-        PDImageXObject imgXObj1 = mock(PDImageXObject.class);
-        BufferedImage img1 = new BufferedImage(2, 2, BufferedImage.TYPE_INT_ARGB);
-        when(imgXObj1.getImage()).thenReturn(img1);
-        when(root.getXObject(im1)).thenReturn(imgXObj1);
-
-        // "Other" XObject that should be ignored
-        PDXObject otherXObj = mock(PDXObject.class);
-        when(root.getXObject(other1)).thenReturn(otherXObj);
-
-        // Form XObject with its own resources
-        PDFormXObject formXObj = mock(PDFormXObject.class);
-        PDResources formRes = mock(PDResources.class);
-        when(formXObj.getResources()).thenReturn(formRes);
-        when(root.getXObject(form1)).thenReturn(formXObj);
-
-        // Inside the form: one image and a nested form
-        COSName im2 = COSName.getPDFName("Im2");
-        COSName nestedForm = COSName.getPDFName("NestedForm");
-        when(formRes.getXObjectNames()).thenReturn(Arrays.asList(im2, nestedForm));
-
-        PDImageXObject imgXObj2 = mock(PDImageXObject.class);
-        BufferedImage img2 = new BufferedImage(3, 3, BufferedImage.TYPE_INT_RGB);
-        when(imgXObj2.getImage()).thenReturn(img2);
-        when(formRes.getXObject(im2)).thenReturn(imgXObj2);
-
-        PDFormXObject nestedFormXObj = mock(PDFormXObject.class);
-        PDResources nestedRes = mock(PDResources.class);
-        when(nestedFormXObj.getResources()).thenReturn(nestedRes);
-        when(formRes.getXObject(nestedForm)).thenReturn(nestedFormXObj);
-
-        // Deep nest: another image
-        COSName im3 = COSName.getPDFName("Im3");
-        when(nestedRes.getXObjectNames()).thenReturn(List.of(im3));
-
-        PDImageXObject imgXObj3 = mock(PDImageXObject.class);
-        BufferedImage img3 = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB);
-        when(imgXObj3.getImage()).thenReturn(img3);
-        when(nestedRes.getXObject(im3)).thenReturn(imgXObj3);
-
-        // Act
-        List<RenderedImage> result = PdfUtils.getAllImages(root);
-
-        // Assert
-        assertEquals(
-                3, result.size(), "It should find exactly 3 images (root + form + nested form).");
-        assertTrue(
-                result.containsAll(List.of(img1, img2, img3)),
-                "All expected images must be present.");
-    }
-
-    @Test
-    void testPageCountComparators() throws Exception {
-        PDDocument doc1 = new PDDocument();
-        doc1.addPage(new PDPage());
-        doc1.addPage(new PDPage());
-        doc1.addPage(new PDPage());
-        assertTrue(PdfUtils.pageCount(doc1, 2, "greater"));
-
-        PDDocument doc2 = new PDDocument();
-        doc2.addPage(new PDPage());
-        doc2.addPage(new PDPage());
-        doc2.addPage(new PDPage());
-        assertTrue(PdfUtils.pageCount(doc2, 3, "equal"));
-
-        PDDocument doc3 = new PDDocument();
-        doc3.addPage(new PDPage());
-        doc3.addPage(new PDPage());
-        assertTrue(PdfUtils.pageCount(doc3, 5, "less"));
-
-        PDDocument doc4 = new PDDocument();
-        doc4.addPage(new PDPage());
-        assertThrows(IllegalArgumentException.class, () -> PdfUtils.pageCount(doc4, 1, "bad"));
-    }
-
-    @Test
-    void testPageSize() throws Exception {
-        PDDocument doc = new PDDocument();
-        PDPage page = new PDPage(PDRectangle.A4);
-        doc.addPage(page);
-        PDRectangle rect = page.getMediaBox();
-        String expected = rect.getWidth() + "x" + rect.getHeight();
-        assertTrue(PdfUtils.pageSize(doc, expected));
-    }
-
-    @Test
-    void testOverlayImage() throws Exception {
-        PDDocument doc = new PDDocument();
-        doc.addPage(new PDPage(PDRectangle.A4));
-        ByteArrayOutputStream pdfOut = new ByteArrayOutputStream();
-        doc.save(pdfOut);
-        doc.close();
-
-        BufferedImage image = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
-        Graphics2D g = image.createGraphics();
-        g.setColor(Color.RED);
-        g.fillRect(0, 0, 10, 10);
-        g.dispose();
-        ByteArrayOutputStream imgOut = new ByteArrayOutputStream();
-        ImageIO.write(image, "png", imgOut);
-
-        PdfMetadataService meta =
-                new PdfMetadataService(new ApplicationProperties(), "label", false, null);
-        CustomPDFDocumentFactory factory = new CustomPDFDocumentFactory(meta);
-
-        byte[] result =
-                PdfUtils.overlayImage(
-                        factory, pdfOut.toByteArray(), imgOut.toByteArray(), 0, 0, false);
-        try (PDDocument resultDoc = factory.load(result)) {
-            assertEquals(1, resultDoc.getNumberOfPages());
-        }
-    }
-
-    // ===============================================================
-    // Additional tests (added without modifying existing ones)
-    // ===============================================================
-
-    /* Helper: create a colored test image */
-    private static BufferedImage createImage(int w, int h, Color color) {
-        BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
-        Graphics2D g = img.createGraphics();
-        g.setColor(color);
-        g.fillRect(0, 0, w, h);
-        g.dispose();
-        return img;
-    }
-
-    /* Helper: create a factory like in existing tests */
-    private static CustomPDFDocumentFactory factory() {
-        PdfMetadataService meta =
-                new PdfMetadataService(new ApplicationProperties(), "label", false, null);
-        return new CustomPDFDocumentFactory(meta);
-    }
-
-    @Test
-    @DisplayName("convertPdfToPdfImage: creates image-PDF with same page count")
-    void convertPdfToPdfImage_shouldCreateImagePdfWithSamePageCount() throws IOException {
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            doc.addPage(p1);
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p1, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("Hello PDF");
-                cs.endText();
-            }
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            doc.addPage(p2);
-
-            PDDocument out = PdfUtils.convertPdfToPdfImage(doc);
-            assertNotNull(out);
-            assertEquals(2, out.getNumberOfPages(), "Page count should be preserved");
-            out.close();
-        }
-    }
-
-    @Test
-    @DisplayName("imageToPdf: PNG -> single-page PDF (static ImageProcessingUtils mocked)")
-    void imageToPdf_shouldCreatePdfFromPng() throws Exception {
-        BufferedImage img = createImage(320, 200, Color.RED);
-        ByteArrayOutputStream pngOut = new ByteArrayOutputStream();
-        ImageIO.write(img, "png", pngOut);
-
-        MockMultipartFile file =
-                new MockMultipartFile("files", "test.png", "image/png", pngOut.toByteArray());
-
-        try (MockedStatic<ImageProcessingUtils> mocked = mockStatic(ImageProcessingUtils.class)) {
-            // Assume: loadImageWithExifOrientation/convertColorType exist – static mock
-            mocked.when(() -> ImageProcessingUtils.loadImageWithExifOrientation(any()))
-                    .thenReturn(img);
-            mocked.when(
-                            () ->
-                                    ImageProcessingUtils.convertColorType(
-                                            any(BufferedImage.class), anyString()))
-                    .thenAnswer(inv -> inv.getArgument(0, BufferedImage.class));
-
-            byte[] pdfBytes =
-                    PdfUtils.imageToPdf(
-                            new MockMultipartFile[] {file},
-                            "maintainAspectRatio",
-                            true,
-                            "RGB",
-                            factory());
-
-            try (PDDocument result = factory().load(pdfBytes)) {
-                assertEquals(1, result.getNumberOfPages());
-            }
-        }
-    }
-
-    @Test
-    @DisplayName("imageToPdf: JPEG -> single-page PDF (JPEGFactory path)")
-    void imageToPdf_shouldCreatePdfFromJpeg_UsingJpegFactory() throws Exception {
-        BufferedImage img = createImage(640, 360, Color.BLUE);
-        ByteArrayOutputStream jpgOut = new ByteArrayOutputStream();
-        ImageIO.write(img, "jpg", jpgOut);
-
-        MockMultipartFile file =
-                new MockMultipartFile("files", "photo.jpg", "image/jpeg", jpgOut.toByteArray());
-
-        try (MockedStatic<ImageProcessingUtils> mocked = mockStatic(ImageProcessingUtils.class)) {
-            mocked.when(() -> ImageProcessingUtils.loadImageWithExifOrientation(any()))
-                    .thenReturn(img);
-            mocked.when(
-                            () ->
-                                    ImageProcessingUtils.convertColorType(
-                                            any(BufferedImage.class), anyString()))
-                    .thenAnswer(inv -> inv.getArgument(0, BufferedImage.class));
-
-            byte[] pdfBytes =
-                    PdfUtils.imageToPdf(
-                            new MockMultipartFile[] {file}, "fillPage", false, "RGB", factory());
-
-            try (PDDocument result = factory().load(pdfBytes)) {
-                assertEquals(1, result.getNumberOfPages());
-            }
-        }
-    }
-
-    @Test
-    @DisplayName("addImageToDocument: fitDocumentToImage -> page size = image size")
-    void addImageToDocument_shouldUseImageSizeForPage_whenFitDocumentToImage() throws IOException {
-        try (PDDocument doc = new PDDocument()) {
-            BufferedImage img = createImage(300, 500, Color.GREEN);
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, img);
-
-            PdfUtils.addImageToDocument(doc, ximg, "fitDocumentToImage", false);
-
-            assertEquals(1, doc.getNumberOfPages());
-            PDRectangle box = doc.getPage(0).getMediaBox();
-            assertEquals(300, (int) box.getWidth());
-            assertEquals(500, (int) box.getHeight());
-        }
-    }
-
-    @Test
-    @DisplayName("addImageToDocument: autoRotate rotates A4 for landscape image")
-    void addImageToDocument_shouldRotateA4_whenAutoRotateAndLandscape() throws IOException {
-        try (PDDocument doc = new PDDocument()) {
-            BufferedImage img = createImage(800, 400, Color.ORANGE); // Landscape
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, img);
-
-            PdfUtils.addImageToDocument(doc, ximg, "maintainAspectRatio", true);
-
-            assertEquals(1, doc.getNumberOfPages());
-            PDRectangle box = doc.getPage(0).getMediaBox();
-            assertTrue(
-                    box.getWidth() > box.getHeight(),
-                    "A4 should be landscape when auto-rotate + landscape");
-        }
-    }
-
-    @Test
-    @DisplayName("addImageToDocument: fillPage runs without errors")
-    void addImageToDocument_fillPage_executes() throws IOException {
-        try (PDDocument doc = new PDDocument()) {
-            BufferedImage img = createImage(200, 200, Color.MAGENTA);
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, img);
-
-            PdfUtils.addImageToDocument(doc, ximg, "fillPage", false);
-
-            assertEquals(1, doc.getNumberOfPages());
-        }
-    }
-
-    @Test
-    @DisplayName("overlayImage: everyPage=true overlays all pages")
-    void overlayImage_shouldOverlayAllPages_whenEveryPageTrue() throws IOException {
-        CustomPDFDocumentFactory factory = factory();
-
-        // Create PDF with 2 pages
-        byte[] basePdf;
-        try (PDDocument doc = factory.createNewDocument()) {
-            doc.addPage(new PDPage(PDRectangle.A4));
-            doc.addPage(new PDPage(PDRectangle.A4));
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            doc.save(baos);
-            basePdf = baos.toByteArray();
-        }
-
-        // Create image bytes
-        BufferedImage img = createImage(50, 50, Color.BLACK);
-        ByteArrayOutputStream pngOut = new ByteArrayOutputStream();
-        ImageIO.write(img, "png", pngOut);
-
-        byte[] result = PdfUtils.overlayImage(factory, basePdf, pngOut.toByteArray(), 10, 10, true);
-
-        try (PDDocument out = factory.load(result)) {
-            assertEquals(2, out.getNumberOfPages(), "Page count remains identical");
-        }
-    }
-
-    /* Helper function: document with text on page1/page2 */
-    private static PDDocument createDocWithText(String p1, String p2) throws IOException {
-        PDDocument doc = new PDDocument();
-
-        PDPage page1 = new PDPage(PDRectangle.A4);
-        doc.addPage(page1);
-        try (PDPageContentStream cs =
-                new PDPageContentStream(doc, page1, AppendMode.APPEND, true, true)) {
-            cs.beginText();
-            cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-            cs.newLineAtOffset(50, 750);
-            cs.showText(p1);
-            cs.endText();
-        }
-
-        PDPage page2 = new PDPage(PDRectangle.A4);
-        doc.addPage(page2);
-        try (PDPageContentStream cs =
-                new PDPageContentStream(doc, page2, AppendMode.APPEND, true, true)) {
-            cs.beginText();
-            cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-            cs.newLineAtOffset(50, 750);
-            cs.showText(p2);
-            cs.endText();
-        }
-
-        return doc;
-    }
-
-    @Test
-    @DisplayName("containsTextInFile: pagesToCheck='all' finds text")
-    void containsTextInFile_allPages_true() throws IOException {
-        try (PDDocument doc = createDocWithText("alpha", "beta")) {
-            assertTrue(PdfUtils.containsTextInFile(doc, "beta", "all"));
-        }
-    }
-
-    @Test
-    @DisplayName("containsTextInFile: single page '2' finds text")
-    void containsTextInFile_singlePage_two_true() throws IOException {
-        try (PDDocument doc = createDocWithText("alpha", "beta")) {
-            assertTrue(PdfUtils.containsTextInFile(doc, "beta", "2"));
-        }
-    }
-
-    @Test
-    @DisplayName("containsTextInFile: range '1-1' finds text on page 1")
-    void containsTextInFile_range_oneToOne_true() throws IOException {
-        try (PDDocument doc = createDocWithText("findme", "other")) {
-            assertTrue(PdfUtils.containsTextInFile(doc, "findme", "1-1"));
-        }
-    }
-
-    @Test
-    @DisplayName("containsTextInFile: list '1,2' finds text (whitespace robust)")
-    void containsTextInFile_list_pages_true() throws IOException {
-        try (PDDocument doc = createDocWithText("foo", "bar")) {
-            assertTrue(PdfUtils.containsTextInFile(doc, "bar", " 1 , 2 "));
-        }
-    }
-
-    @Test
-    @DisplayName("containsTextInFile: text not present -> false")
-    void containsTextInFile_textNotPresent_false() throws IOException {
-        try (PDDocument doc = createDocWithText("xxx", "yyy")) {
-            assertFalse(PdfUtils.containsTextInFile(doc, "zzz", "all"));
-        }
-    }
-
-    @Test
-    @DisplayName("pageSize: different size returns false")
-    void pageSize_shouldReturnFalse_whenSizeDoesNotMatch() throws IOException {
-        try (PDDocument doc = new PDDocument()) {
-            doc.addPage(new PDPage(PDRectangle.A4));
-            assertFalse(PdfUtils.pageSize(doc, "600x842"));
-        }
-    }
-
-    // ===================== New: convertFromPdf – coverage =====================
-
-    @Test
-    @DisplayName("convertFromPdf: singleImage=true creates combined PNG file (readable)")
-    void convertFromPdf_singleImagePng_combinedReadable() throws Exception {
-        // Create two-page PDF
-        byte[] pdfBytes;
-        PdfMetadataService meta =
-                new PdfMetadataService(new ApplicationProperties(), "label", false, null);
-        CustomPDFDocumentFactory factory = new CustomPDFDocumentFactory(meta);
-        try (PDDocument doc = new PDDocument()) {
-            doc.addPage(new PDPage(PDRectangle.A4));
-            doc.addPage(new PDPage(PDRectangle.A4));
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            doc.save(baos);
-            pdfBytes = baos.toByteArray();
-        }
-
-        byte[] imageBytes =
-                PdfUtils.convertFromPdf(
-                        factory, pdfBytes, "png", ImageType.RGB, true, 72, "test.pdf", false);
-
-        // Should be readable as a single combined PNG image
-        BufferedImage img = ImageIO.read(new java.io.ByteArrayInputStream(imageBytes));
-        assertNotNull(img, "PNG should be readable");
-        assertTrue(img.getWidth() > 0 && img.getHeight() > 0, "Image dimensions > 0");
-    }
-
-    @Test
-    @DisplayName(
-            "convertFromPdf: singleImage=false returns ZIP with PNG entries (first image readable)")
-    void convertFromPdf_multiImagePng_firstReadable() throws Exception {
-        // Create two-page PDF
-        byte[] pdfBytes;
-        PdfMetadataService meta =
-                new PdfMetadataService(new ApplicationProperties(), "label", false, null);
-        CustomPDFDocumentFactory factory = new CustomPDFDocumentFactory(meta);
-        try (PDDocument doc = new PDDocument()) {
-            doc.addPage(new PDPage(PDRectangle.A4));
-            doc.addPage(new PDPage(PDRectangle.A4));
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            doc.save(baos);
-            pdfBytes = baos.toByteArray();
-        }
-
-        // Act: singleImage=false -> ZIP with separate images
-        byte[] zipBytes =
-                PdfUtils.convertFromPdf(
-                        factory, pdfBytes, "png", ImageType.RGB, false, 72, "test.pdf", false);
-
-        // Assert: open ZIP, read first entry as PNG
-        try (ZipInputStream zis = new ZipInputStream(new ByteArrayInputStream(zipBytes))) {
-            ZipEntry entry = zis.getNextEntry();
-            assertNotNull(entry, "ZIP should contain at least one entry");
-
-            ByteArrayOutputStream imgOut = new ByteArrayOutputStream();
-            zis.transferTo(imgOut);
-            BufferedImage first = ImageIO.read(new ByteArrayInputStream(imgOut.toByteArray()));
-
-            assertNotNull(first, "First PNG entry should be readable");
-            assertTrue(first.getWidth() > 0 && first.getHeight() > 0, "Image dimensions > 0");
-        }
-    }
-
-    @Test
-    @DisplayName("hasText: detects phrase on selected pages ('1', '2', 'all')")
-    void hasText_shouldDetectPhrase_onSelectedPages() throws Exception {
-        // Arrange: PDF with 2 pages and text
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p1, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("alpha on page 1");
-                cs.endText();
-            }
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p2, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("beta on page 2");
-                cs.endText();
-            }
-
-            assertTrue(PdfUtils.hasText(doc, "1", "alpha"), "Page 1 should contain 'alpha'");
-        }
-
-        // For further checks, create new doc with identical content
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p1, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("alpha on page 1");
-                cs.endText();
-            }
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p2, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("beta on page 2");
-                cs.endText();
-            }
-
-            assertTrue(PdfUtils.hasText(doc, "2", "beta"), "Page 2 should contain 'beta'");
-        }
-
-        // Third doc for 'all'
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p1, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("gamma");
-                cs.endText();
-            }
-            assertTrue(PdfUtils.hasText(doc, "all", "gamma"), "'all' should find text on page 1");
-        }
-    }
-
-    @Test
-    @DisplayName("hasTextOnPage: true if page contains phrase, else false")
-    void hasTextOnPage_shouldReturnTrueOnlyForPagesWithPhrase() throws Exception {
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p1, AppendMode.APPEND, true, true)) {
-                cs.beginText();
-                cs.setFont(new PDType1Font(Standard14Fonts.FontName.HELVETICA), 12);
-                cs.newLineAtOffset(50, 750);
-                cs.showText("needle");
-                cs.endText();
-            }
-
-            assertTrue(PdfUtils.hasTextOnPage(p1, "needle"));
-            assertTrue(!PdfUtils.hasTextOnPage(p2, "needle"));
-        }
-    }
-
-    @Test
-    @DisplayName("hasImages: detects images on selected pages and 'all'")
-    void hasImages_shouldDetectImages_onSelectedPages() throws Exception {
-        // Case 1: Page 1 without image (but resources set) -> false
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            p1.setResources(new PDResources());
-            p2.setResources(new PDResources());
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            // Image only on page 2
-            BufferedImage bi = new BufferedImage(20, 20, BufferedImage.TYPE_INT_RGB);
-            Graphics2D g = bi.createGraphics();
-            g.setColor(Color.GREEN);
-            g.fillRect(0, 0, 20, 20);
-            g.dispose();
-
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, bi);
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p2, AppendMode.APPEND, true, true)) {
-                cs.drawImage(ximg, 50, 700, 20, 20);
-            }
-
-            assertTrue(!PdfUtils.hasImages(doc, "1"), "Page 1 should have no image");
-        }
-
-        // Case 2: Page 2 with image -> true
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            p1.setResources(new PDResources());
-            p2.setResources(new PDResources());
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            BufferedImage bi = new BufferedImage(20, 20, BufferedImage.TYPE_INT_RGB);
-            Graphics2D g = bi.createGraphics();
-            g.setColor(Color.BLUE);
-            g.fillRect(0, 0, 20, 20);
-            g.dispose();
-
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, bi);
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p2, AppendMode.APPEND, true, true)) {
-                cs.drawImage(ximg, 50, 700, 20, 20);
-            }
-
-            assertTrue(PdfUtils.hasImages(doc, "2"), "Page 2 should have an image");
-        }
-
-        // Case 3: 'all' detects image
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p = new PDPage(PDRectangle.A4);
-            p.setResources(new PDResources());
-            doc.addPage(p);
-
-            BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, bi);
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p, AppendMode.APPEND, true, true)) {
-                cs.drawImage(ximg, 20, 730, 10, 10);
-            }
-
-            assertTrue(PdfUtils.hasImages(doc, "all"), "'all' should detect the image");
-        }
-    }
-
-    @Test
-    @DisplayName("hasImagesOnPage: true if page contains an image, else false")
-    void hasImagesOnPage_shouldReturnTrueOnlyForPagesWithImage() throws Exception {
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p1 = new PDPage(PDRectangle.A4);
-            PDPage p2 = new PDPage(PDRectangle.A4);
-            p1.setResources(new PDResources());
-            p2.setResources(new PDResources());
-            doc.addPage(p1);
-            doc.addPage(p2);
-
-            BufferedImage bi = new BufferedImage(12, 12, BufferedImage.TYPE_INT_RGB);
-            Graphics2D g = bi.createGraphics();
-            g.setColor(Color.RED);
-            g.fillRect(0, 0, 12, 12);
-            g.dispose();
-
-            PDImageXObject ximg = LosslessFactory.createFromImage(doc, bi);
-            try (PDPageContentStream cs =
-                    new PDPageContentStream(doc, p1, AppendMode.APPEND, true, true)) {
-                cs.drawImage(ximg, 40, 720, 12, 12);
-            }
-
-            assertTrue(PdfUtils.hasImagesOnPage(p1));
-            assertTrue(!PdfUtils.hasImagesOnPage(p2));
-        }
-    }
-
-    @Test
-    @DisplayName("convertFromPdf: singleImage=true with JPG -> no alpha, white background")
-    void convertFromPdf_singleImageJpg_noAlphaWhiteBackground() throws Exception {
-        // small 1-page PDF
-        byte[] pdfBytes;
-        PdfMetadataService meta =
-                new PdfMetadataService(new ApplicationProperties(), "label", false, null);
-        CustomPDFDocumentFactory factory = new CustomPDFDocumentFactory(meta);
-        try (PDDocument doc = new PDDocument()) {
-            PDPage p = new PDPage(PDRectangle.A4);
-            doc.addPage(p);
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            doc.save(baos);
-            pdfBytes = baos.toByteArray();
-        }
-
-        byte[] jpgBytes =
-                PdfUtils.convertFromPdf(
-                        factory, pdfBytes, "jpg", ImageType.RGB, true, 72, "sample.pdf", false);
-
-        BufferedImage img = ImageIO.read(new ByteArrayInputStream(jpgBytes));
-        assertNotNull(img, "JPG should be readable");
-
-        ColorModel cm = img.getColorModel();
-        assertFalse(cm.hasAlpha(), "JPG output should have no alpha channel");
-
-        // JPG background should be white (approximate check)
-        int rgb = img.getRGB(img.getWidth() / 2, img.getHeight() / 2) & 0x00FFFFFF;
-        assertEquals(0xFFFFFF, rgb, "Background pixel should be white");
-    }
-}
@@ -1,86 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-
-public class ProcessExecutorTest {
-
-    private ProcessExecutor processExecutor;
-
-    @BeforeEach
-    public void setUp() {
-        // Initialize the ProcessExecutor instance
-        processExecutor = ProcessExecutor.getInstance(ProcessExecutor.Processes.LIBRE_OFFICE);
-    }
-
-    @Test
-    public void testRunCommandWithOutputHandling() throws IOException, InterruptedException {
-        // Mock the command to execute
-        List<String> command = new ArrayList<>();
-        command.add("java");
-        command.add("-version");
-
-        // Execute the command
-        ProcessExecutor.ProcessExecutorResult result =
-                processExecutor.runCommandWithOutputHandling(command);
-
-        // Check the exit code and output messages
-        assertEquals(0, result.getRc());
-        assertNotNull(result.getMessages()); // Check if messages are not null
-    }
-
-    @Test
-    public void testRunCommandWithOutputHandling_Error() {
-        // Test with a command that will fail to execute (non-existent command)
-        List<String> command = new ArrayList<>();
-        command.add("nonexistent-command-that-does-not-exist");
-
-        // Execute the command and expect an IOException (command not found)
-        assertThrows(
-                IOException.class, () -> processExecutor.runCommandWithOutputHandling(command));
-    }
-
-    @Test
-    public void testRunCommandWithOutputHandling_PathTraversal() {
-        // Test that path traversal is blocked
-        List<String> command = new ArrayList<>();
-        command.add("../../../etc/passwd");
-
-        // Execute the command and expect an IllegalArgumentException
-        IllegalArgumentException thrown =
-                assertThrows(
-                        IllegalArgumentException.class,
-                        () -> processExecutor.runCommandWithOutputHandling(command));
-
-        // Check the exception message
-        String errorMessage = thrown.getMessage();
-        assertTrue(
-                errorMessage.contains("path traversal"),
-                "Unexpected error message: " + errorMessage);
-    }
-
-    @Test
-    public void testRunCommandWithOutputHandling_NullByte() {
-        // Test that null bytes are blocked
-        List<String> command = new ArrayList<>();
-        command.add("test\0command");
-
-        // Execute the command and expect an IllegalArgumentException
-        IllegalArgumentException thrown =
-                assertThrows(
-                        IllegalArgumentException.class,
-                        () -> processExecutor.runCommandWithOutputHandling(command));
-
-        // Check the exception message
-        String errorMessage = thrown.getMessage();
-        assertTrue(
-                errorMessage.contains("invalid characters"),
-                "Unexpected error message: " + errorMessage);
-    }
-}
@@ -1,70 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-import java.util.Arrays;
-import java.util.List;
-
-import org.junit.jupiter.api.Test;
-
-public class PropertyConfigsTest {
-
-    @Test
-    public void testGetBooleanValue_WithKeys() {
-        // Define keys and default value
-        List<String> keys = Arrays.asList("test.key1", "test.key2", "test.key3");
-        boolean defaultValue = false;
-
-        // Set property for one of the keys
-        System.setProperty("test.key2", "true");
-
-        // Call the method under test
-        boolean result = PropertyConfigs.getBooleanValue(keys, defaultValue);
-
-        // Verify the result
-        assertTrue(result);
-    }
-
-    @Test
-    public void testGetStringValue_WithKeys() {
-        // Define keys and default value
-        List<String> keys = Arrays.asList("test.key1", "test.key2", "test.key3");
-        String defaultValue = "default";
-
-        // Set property for one of the keys
-        System.setProperty("test.key2", "value");
-
-        // Call the method under test
-        String result = PropertyConfigs.getStringValue(keys, defaultValue);
-
-        // Verify the result
-        assertEquals("value", result);
-    }
-
-    @Test
-    public void testGetBooleanValue_WithKey() {
-        // Define key and default value
-        String key = "test.key";
-        boolean defaultValue = true;
-
-        // Call the method under test
-        boolean result = PropertyConfigs.getBooleanValue(key, defaultValue);
-
-        // Verify the result
-        assertTrue(result);
-    }
-
-    @Test
-    public void testGetStringValue_WithKey() {
-        // Define key and default value
-        String key = "test.key";
-        String defaultValue = "default";
-
-        // Call the method under test
-        String result = PropertyConfigs.getStringValue(key, defaultValue);
-
-        // Verify the result
-        assertEquals("default", result);
-    }
-}
@@ -1,340 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.ValueSource;
-
-public class RequestUriUtilsTest {
-
-    @Test
-    void testIsStaticResource() {
-        // Test static resources without context path
-        assertTrue(
-                RequestUriUtils.isStaticResource("/css/styles.css"), "CSS files should be static");
-        assertTrue(RequestUriUtils.isStaticResource("/js/script.js"), "JS files should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/images/logo.png"),
-                "Image files should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/public/index.html"),
-                "Public files should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/pdfjs/pdf.worker.js"),
-                "PDF.js files should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/pdfium/pdfium.wasm"),
-                "PDFium wasm should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/api/v1/info/status"),
-                "API status should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/some-path/icon.svg"),
-                "SVG files should be static");
-        assertTrue(RequestUriUtils.isStaticResource("/login"), "Login page should be static");
-        assertTrue(RequestUriUtils.isStaticResource("/error"), "Error page should be static");
-
-        // Test non-static resources
-        assertFalse(
-                RequestUriUtils.isStaticResource("/api/v1/users"),
-                "API users should not be static");
-        assertFalse(
-                RequestUriUtils.isStaticResource("/api/v1/orders"),
-                "API orders should not be static");
-        assertFalse(RequestUriUtils.isStaticResource("/"), "Root path should not be static");
-        assertFalse(
-                RequestUriUtils.isStaticResource("/register"),
-                "Register page should not be static");
-        assertFalse(
-                RequestUriUtils.isStaticResource("/api/v1/products"),
-                "API products should not be static");
-    }
-
-    @Test
-    void testIsFrontendRoute() {
-        assertTrue(
-                RequestUriUtils.isFrontendRoute("", "/"), "Root path should be a frontend route");
-        assertTrue(
-                RequestUriUtils.isFrontendRoute("", "/app/dashboard"),
-                "React routes without extensions should be frontend routes");
-        assertFalse(
-                RequestUriUtils.isFrontendRoute("", "/api/v1/users"),
-                "API routes should not be frontend routes");
-        assertFalse(
-                RequestUriUtils.isFrontendRoute("", "/register"),
-                "Register should not be treated as a frontend route");
-        assertFalse(
-                RequestUriUtils.isFrontendRoute("", "/pipeline/jobs"),
-                "Pipeline should not be treated as a frontend route");
-        assertFalse(
-                RequestUriUtils.isFrontendRoute("", "/files/download"),
-                "Files path should not be treated as a frontend route");
-    }
-
-    @Test
-    void testIsStaticResourceWithContextPath() {
-        String contextPath = "/myapp";
-
-        // Test static resources with context path
-        assertTrue(
-                RequestUriUtils.isStaticResource(contextPath, contextPath + "/css/styles.css"),
-                "CSS with context path should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource(contextPath, contextPath + "/js/script.js"),
-                "JS with context path should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource(contextPath, contextPath + "/images/logo.png"),
-                "Images with context path should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource(contextPath, contextPath + "/login"),
-                "Login with context path should be static");
-
-        // Test non-static resources with context path
-        assertFalse(
-                RequestUriUtils.isStaticResource(contextPath, contextPath + "/api/v1/users"),
-                "API users with context path should not be static");
-        assertFalse(
-                RequestUriUtils.isStaticResource(contextPath, "/"),
-                "Root path with context path should not be static");
-    }
-
-    @ParameterizedTest
-    @ValueSource(
-            strings = {
-                "robots.txt",
-                "/favicon.ico",
-                "/icon.svg",
-                "/image.png",
-                "/locales/en/translation.toml",
-                "/site.webmanifest",
-                "/app/logo.svg",
-                "/downloads/document.png",
-                "/assets/brand.ico",
-                "/any/path/with/image.svg",
-                "/deep/nested/folder/icon.png",
-                "/pdfium/pdfium.wasm"
-            })
-    void testIsStaticResourceWithFileExtensions(String path) {
-        assertTrue(
-                RequestUriUtils.isStaticResource(path),
-                "Files with specific extensions should be static regardless of path");
-    }
-
-    @Test
-    void testIsTrackableResource() {
-        // Test non-trackable resources (returns false)
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/js/script.js"),
-                "JS files should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/v1/api-docs"),
-                "API docs should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("robots.txt"),
-                "robots.txt should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/images/logo.png"),
-                "Images should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/styles.css"),
-                "CSS files should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/script.js.map"),
-                "Map files should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/icon.svg"),
-                "SVG files should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/popularity.txt"),
-                "Popularity file should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/script.js"),
-                "JS files should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/pdfium/pdfium.wasm"),
-                "PDFium wasm should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/swagger/index.html"),
-                "Swagger files should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/api/v1/info/status"),
-                "API info should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/site.webmanifest"),
-                "Webmanifest should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/fonts/font.woff"),
-                "Fonts should not be trackable");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/pdfjs/viewer.js"),
-                "PDF.js files should not be trackable");
-
-        // Test trackable resources (returns true)
-        assertTrue(RequestUriUtils.isTrackableResource("/login"), "Login page should be trackable");
-        assertTrue(
-                RequestUriUtils.isTrackableResource("/register"),
-                "Register page should be trackable");
-        assertTrue(
-                RequestUriUtils.isTrackableResource("/api/v1/users"),
-                "API users should be trackable");
-        assertTrue(RequestUriUtils.isTrackableResource("/"), "Root path should be trackable");
-        assertTrue(
-                RequestUriUtils.isTrackableResource("/some-other-path"),
-                "Other paths should be trackable");
-    }
-
-    @Test
-    void testIsTrackableResourceWithContextPath() {
-        String contextPath = "/myapp";
-
-        // Test with context path
-        assertFalse(
-                RequestUriUtils.isTrackableResource(contextPath, "/js/script.js"),
-                "JS files should not be trackable with context path");
-        assertTrue(
-                RequestUriUtils.isTrackableResource(contextPath, "/login"),
-                "Login page should be trackable with context path");
-
-        // Additional tests with context path
-        assertFalse(
-                RequestUriUtils.isTrackableResource(contextPath, "/fonts/custom.woff"),
-                "Font files should not be trackable with context path");
-        assertFalse(
-                RequestUriUtils.isTrackableResource(contextPath, "/images/header.png"),
-                "Images should not be trackable with context path");
-        assertFalse(
-                RequestUriUtils.isTrackableResource(contextPath, "/swagger/ui.html"),
-                "Swagger UI should not be trackable with context path");
-        assertTrue(
-                RequestUriUtils.isTrackableResource(contextPath, "/account/profile"),
-                "Account page should be trackable with context path");
-        assertTrue(
-                RequestUriUtils.isTrackableResource(contextPath, "/pdf/view"),
-                "PDF view page should be trackable with context path");
-    }
-
-    @ParameterizedTest
-    @ValueSource(
-            strings = {
-                "/js/util.js",
-                "/v1/api-docs/swagger.json",
-                "/robots.txt",
-                "/images/header/logo.png",
-                "/styles/theme.css",
-                "/build/app.js.map",
-                "/assets/icon.svg",
-                "/data/popularity.txt",
-                "/bundle.js",
-                "/api/swagger-ui.html",
-                "/api/v1/info/health",
-                "/site.webmanifest",
-                "/fonts/roboto.woff",
-                "/pdfjs/viewer.js",
-                "/pdfium/pdfium.wasm"
-            })
-    void testNonTrackableResources(String path) {
-        assertFalse(
-                RequestUriUtils.isTrackableResource(path),
-                "Resources matching patterns should not be trackable: " + path);
-    }
-
-    @ParameterizedTest
-    @ValueSource(
-            strings = {
-                "/",
-                "/home",
-                "/login",
-                "/register",
-                "/pdf/merge",
-                "/pdf/split",
-                "/api/v1/users/1",
-                "/api/v1/documents/process",
-                "/settings",
-                "/account/profile",
-                "/dashboard",
-                "/help",
-                "/about"
-            })
-    void testTrackableResources(String path) {
-        assertTrue(
-                RequestUriUtils.isTrackableResource(path),
-                "App routes should be trackable: " + path);
-    }
-
-    @Test
-    void testEdgeCases() {
-        // Test with empty strings
-        assertFalse(RequestUriUtils.isStaticResource("", ""), "Empty path should not be static");
-        assertTrue(RequestUriUtils.isTrackableResource("", ""), "Empty path should be trackable");
-
-        // Test with null-like behavior (would actually throw NPE in real code)
-        // These are not actual null tests but shows handling of odd cases
-        assertFalse(RequestUriUtils.isStaticResource("null"), "String 'null' should not be static");
-
-        // Test String "null" as a path
-        boolean isTrackable = RequestUriUtils.isTrackableResource("null");
-        assertTrue(isTrackable, "String 'null' should be trackable");
-
-        // Mixed case extensions test - note that Java's endsWith() is case-sensitive
-        // We'll check actual behavior and document it rather than asserting
-
-        // Always test the lowercase versions which should definitely work
-        assertTrue(
-                RequestUriUtils.isStaticResource("/logo.png"), "PNG (lowercase) should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/icon.svg"), "SVG (lowercase) should be static");
-
-        // Path with query parameters
-        assertFalse(
-                RequestUriUtils.isStaticResource("/api/users?page=1"),
-                "Path with query params should respect base path");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/images/logo.png?v=123"),
-                "Static resource with query params should still be static");
-
-        // Paths with fragments
-        assertTrue(
-                RequestUriUtils.isStaticResource("/css/styles.css#section1"),
-                "CSS with fragment should be static");
-
-        // Multiple dots in filename
-        assertTrue(
-                RequestUriUtils.isStaticResource("/js/jquery.min.js"),
-                "JS with multiple dots should be static");
-
-        // Special characters in path
-        assertTrue(
-                RequestUriUtils.isStaticResource("/images/user's-photo.png"),
-                "Path with special chars should be handled correctly");
-    }
-
-    @Test
-    void testComplexPaths() {
-        // Test complex static resource paths
-        assertTrue(
-                RequestUriUtils.isStaticResource("/css/theme/dark/styles.css"),
-                "Nested CSS should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/fonts/open-sans/bold/font.woff"),
-                "Nested font should be static");
-        assertTrue(
-                RequestUriUtils.isStaticResource("/js/vendor/jquery/3.5.1/jquery.min.js"),
-                "Versioned JS should be static");
-
-        // Test complex paths with context
-        String contextPath = "/app";
-        assertTrue(
-                RequestUriUtils.isStaticResource(
-                        contextPath, contextPath + "/css/theme/dark/styles.css"),
-                "Nested CSS with context should be static");
-
-        // Test boundary cases for isTrackableResource
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/js-framework/components"),
-                "Path starting with js- should not be treated as JS resource");
-        assertFalse(
-                RequestUriUtils.isTrackableResource("/fonts-selection"),
-                "Path starting with fonts- should not be treated as font resource");
-    }
-}
@@ -121,17 +121,19 @@ public class UnoServerPoolTest {

        // Try to acquire a third endpoint in separate thread (should block)
        Thread blockingThread =
-                new Thread(
-                        () -> {
-                            try {
-                                acquireLatch.countDown(); // Signal we're about to block
-                                UnoServerPool.UnoServerLease lease3 = pool.acquireEndpoint();
-                                acquired.incrementAndGet();
-                                lease3.close();
-                            } catch (InterruptedException e) {
-                                Thread.currentThread().interrupt();
-                            }
-                        });
+                Thread.ofVirtual()
+                        .unstarted(
+                                () -> {
+                                    try {
+                                        acquireLatch.countDown(); // Signal we're about to block
+                                        UnoServerPool.UnoServerLease lease3 =
+                                                pool.acquireEndpoint();
+                                        acquired.incrementAndGet();
+                                        lease3.close();
+                                    } catch (InterruptedException e) {
+                                        Thread.currentThread().interrupt();
+                                    }
+                                });

        blockingThread.start();
        acquireLatch.await(); // Wait for thread to start
@@ -1,276 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.Mockito.when;
-
-import java.io.IOException;
-import java.net.ServerSocket;
-
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
-import org.mockito.Mock;
-import org.mockito.junit.jupiter.MockitoExtension;
-
-import jakarta.servlet.http.HttpServletRequest;
-
-@ExtendWith(MockitoExtension.class)
-class UrlUtilsTest {
-
-    @Mock private HttpServletRequest request;
-
-    @Test
-    void testGetOrigin() {
-        // Arrange
-        when(request.getScheme()).thenReturn("http");
-        when(request.getServerName()).thenReturn("localhost");
-        when(request.getServerPort()).thenReturn(8080);
-        when(request.getContextPath()).thenReturn("/myapp");
-
-        // Act
-        String origin = UrlUtils.getOrigin(request);
-
-        // Assert
-        assertEquals(
-                "http://localhost:8080/myapp", origin, "Origin URL should be correctly formatted");
-    }
-
-    @Test
-    void testGetOriginWithHttps() {
-        // Arrange
-        when(request.getScheme()).thenReturn("https");
-        when(request.getServerName()).thenReturn("example.com");
-        when(request.getServerPort()).thenReturn(443);
-        when(request.getContextPath()).thenReturn("");
-
-        // Act
-        String origin = UrlUtils.getOrigin(request);
-
-        // Assert
-        assertEquals(
-                "https://example.com:443",
-                origin,
-                "HTTPS origin URL should be correctly formatted");
-    }
-
-    @Test
-    void testGetOriginWithEmptyContextPath() {
-        // Arrange
-        when(request.getScheme()).thenReturn("http");
-        when(request.getServerName()).thenReturn("localhost");
-        when(request.getServerPort()).thenReturn(8080);
-        when(request.getContextPath()).thenReturn("");
-
-        // Act
-        String origin = UrlUtils.getOrigin(request);
-
-        // Assert
-        assertEquals(
-                "http://localhost:8080",
-                origin,
-                "Origin URL with empty context path should be correct");
-    }
-
-    @Test
-    void testGetOriginWithSpecialCharacters() {
-        // Arrange - Test with server name containing special characters
-        when(request.getScheme()).thenReturn("https");
-        when(request.getServerName()).thenReturn("internal-server.example-domain.com");
-        when(request.getServerPort()).thenReturn(8443);
-        when(request.getContextPath()).thenReturn("/app-v1.2");
-
-        // Act
-        String origin = UrlUtils.getOrigin(request);
-
-        // Assert
-        assertEquals(
-                "https://internal-server.example-domain.com:8443/app-v1.2",
-                origin,
-                "Origin URL with special characters should be correctly formatted");
-    }
-
-    @Test
-    void testGetOriginWithIPv4Address() {
-        // Arrange
-        when(request.getScheme()).thenReturn("http");
-        when(request.getServerName()).thenReturn("192.168.1.100");
-        when(request.getServerPort()).thenReturn(8080);
-        when(request.getContextPath()).thenReturn("/app");
-
-        // Act
-        String origin = UrlUtils.getOrigin(request);
-
-        // Assert
-        assertEquals(
-                "http://192.168.1.100:8080/app",
-                origin,
-                "Origin URL with IPv4 address should be correctly formatted");
-    }
-
-    @Test
-    void testGetOriginWithNonStandardPort() {
-        // Arrange
-        when(request.getScheme()).thenReturn("https");
-        when(request.getServerName()).thenReturn("example.org");
-        when(request.getServerPort()).thenReturn(8443);
-        when(request.getContextPath()).thenReturn("/api");
-
-        // Act
-        String origin = UrlUtils.getOrigin(request);
-
-        // Assert
-        assertEquals(
-                "https://example.org:8443/api",
-                origin,
-                "Origin URL with non-standard port should be correctly formatted");
-    }
-
-    @Test
-    void testIsPortAvailable() {
-        // We'll use a real server socket for this test
-        ServerSocket socket = null;
-        int port = 12345; // Choose a port unlikely to be in use
-
-        try {
-            // First check the port is available
-            boolean initialAvailability = UrlUtils.isPortAvailable(port);
-
-            // Then occupy the port
-            socket = new ServerSocket(port);
-
-            // Now check the port is no longer available
-            boolean afterSocketCreation = UrlUtils.isPortAvailable(port);
-
-            // Assert
-            assertTrue(initialAvailability, "Port should be available initially");
-            assertFalse(
-                    afterSocketCreation, "Port should not be available after socket is created");
-
-        } catch (IOException e) {
-            // This might happen if the port is already in use by another process
-            // We'll just verify the behavior of isPortAvailable matches what we expect
-            assertFalse(
-                    UrlUtils.isPortAvailable(port),
-                    "Port should not be available if exception is thrown");
-        } finally {
-            if (socket != null && !socket.isClosed()) {
-                try {
-                    socket.close();
-                } catch (IOException e) {
-                    // Ignore cleanup exceptions
-                }
-            }
-        }
-    }
-
-    @Test
-    void testFindAvailablePort() {
-        // We'll create a socket on a port and ensure findAvailablePort returns a different port
-        ServerSocket socket = null;
-        int startPort = 12346; // Choose a port unlikely to be in use
-
-        try {
-            // Occupy the start port
-            socket = new ServerSocket(startPort);
-
-            // Find an available port
-            String availablePort = UrlUtils.findAvailablePort(startPort);
-
-            // Assert the returned port is not the occupied one
-            assertNotEquals(
-                    String.valueOf(startPort),
-                    availablePort,
-                    "findAvailablePort should not return an occupied port");
-
-            // Verify the returned port is actually available
-            int portNumber = Integer.parseInt(availablePort);
-
-            // Close our test socket before checking the found port
-            socket.close();
-            socket = null;
-
-            // The port should now be available
-            assertTrue(
-                    UrlUtils.isPortAvailable(portNumber),
-                    "The port returned by findAvailablePort should be available");
-
-        } catch (IOException e) {
-            // If we can't create the socket, skip this assertion
-        } finally {
-            if (socket != null && !socket.isClosed()) {
-                try {
-                    socket.close();
-                } catch (IOException e) {
-                    // Ignore cleanup exceptions
-                }
-            }
-        }
-    }
-
-    @Test
-    void testFindAvailablePortWithAvailableStartPort() {
-        // Find an available port without occupying any
-        int startPort = 23456; // Choose a different unlikely-to-be-used port
-
-        // Make sure the port is available first
-        if (UrlUtils.isPortAvailable(startPort)) {
-            // Find an available port
-            String availablePort = UrlUtils.findAvailablePort(startPort);
-
-            // Assert the returned port is the start port since it's available
-            assertEquals(
-                    String.valueOf(startPort),
-                    availablePort,
-                    "findAvailablePort should return the start port if it's available");
-        }
-    }
-
-    @Test
-    void testFindAvailablePortWithSequentialUsedPorts() {
-        // This test checks that findAvailablePort correctly skips multiple occupied ports
-        ServerSocket socket1 = null;
-        ServerSocket socket2 = null;
-        int startPort = 34567; // Another unlikely-to-be-used port
-
-        try {
-            // First verify the port is available
-            if (!UrlUtils.isPortAvailable(startPort)) {
-                return;
-            }
-
-            // Occupy two sequential ports
-            socket1 = new ServerSocket(startPort);
-            socket2 = new ServerSocket(startPort + 1);
-
-            // Find an available port starting from our occupied range
-            String availablePort = UrlUtils.findAvailablePort(startPort);
-            int foundPort = Integer.parseInt(availablePort);
-
-            // Should have skipped the two occupied ports
-            assertTrue(
-                    foundPort >= startPort + 2,
-                    "findAvailablePort should skip sequential occupied ports");
-
-            // Verify the found port is actually available
-            try (ServerSocket testSocket = new ServerSocket(foundPort)) {
-                assertTrue(testSocket.isBound(), "The found port should be bindable");
-            }
-
-        } catch (IOException e) {
-            // Skip test if we encounter IO exceptions
-        } finally {
-            // Clean up resources
-            try {
-                if (socket1 != null && !socket1.isClosed()) socket1.close();
-                if (socket2 != null && !socket2.isClosed()) socket2.close();
-            } catch (IOException e) {
-                // Ignore cleanup exceptions
-            }
-        }
-    }
-
-    @Test
-    void testIsPortAvailableWithPrivilegedPorts() {
-        // Skip tests for privileged ports as they typically require root access
-        // and results are environment-dependent
-    }
-}
@@ -1,115 +0,0 @@
-package stirling.software.common.util;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.junit.jupiter.api.Test;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.mock.web.MockMultipartFile;
-
-public class WebResponseUtilsTest {
-
-    @Test
-    public void testBoasToWebResponse() {
-        try {
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            baos.write("Sample PDF content".getBytes());
-            String docName = "sample.pdf";
-
-            ResponseEntity<byte[]> responseEntity =
-                    WebResponseUtils.baosToWebResponse(baos, docName);
-
-            assertNotNull(responseEntity);
-            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
-            assertNotNull(responseEntity.getBody());
-
-            HttpHeaders headers = responseEntity.getHeaders();
-            assertNotNull(headers);
-            assertEquals(MediaType.APPLICATION_PDF, headers.getContentType());
-            assertNotNull(headers.getContentDisposition());
-            // assertEquals("attachment; filename=\"sample.pdf\"",
-            // headers.getContentDisposition().toString());
-
-        } catch (IOException e) {
-            fail("Exception thrown: " + e.getMessage());
-        }
-    }
-
-    @Test
-    public void testMultiPartFileToWebResponse() {
-        try {
-            byte[] fileContent = "Sample file content".getBytes();
-            MockMultipartFile file =
-                    new MockMultipartFile(
-                            "file", "sample.txt", MediaType.TEXT_PLAIN_VALUE, fileContent);
-
-            ResponseEntity<byte[]> responseEntity =
-                    WebResponseUtils.multiPartFileToWebResponse(file);
-
-            assertNotNull(responseEntity);
-            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
-            assertNotNull(responseEntity.getBody());
-
-            HttpHeaders headers = responseEntity.getHeaders();
-            assertNotNull(headers);
-            assertEquals(MediaType.TEXT_PLAIN, headers.getContentType());
-            assertNotNull(headers.getContentDisposition());
-
-        } catch (IOException e) {
-            fail("Exception thrown: " + e.getMessage());
-        }
-    }
-
-    @Test
-    public void testBytesToWebResponse() {
-        try {
-            byte[] bytes = "Sample bytes".getBytes();
-            String docName = "sample.txt";
-            MediaType mediaType = MediaType.TEXT_PLAIN;
-
-            ResponseEntity<byte[]> responseEntity =
-                    WebResponseUtils.bytesToWebResponse(bytes, docName, mediaType);
-
-            assertNotNull(responseEntity);
-            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
-            assertNotNull(responseEntity.getBody());
-
-            HttpHeaders headers = responseEntity.getHeaders();
-            assertNotNull(headers);
-            assertEquals(MediaType.TEXT_PLAIN, headers.getContentType());
-            assertNotNull(headers.getContentDisposition());
-
-        } catch (IOException e) {
-            fail("Exception thrown: " + e.getMessage());
-        }
-    }
-
-    @Test
-    public void testPdfDocToWebResponse() {
-        try (PDDocument document = new PDDocument()) {
-            document.addPage(new org.apache.pdfbox.pdmodel.PDPage());
-            String docName = "sample.pdf";
-
-            ResponseEntity<byte[]> responseEntity =
-                    WebResponseUtils.pdfDocToWebResponse(document, docName);
-
-            assertNotNull(responseEntity);
-            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
-            assertNotNull(responseEntity.getBody());
-
-            HttpHeaders headers = responseEntity.getHeaders();
-            assertNotNull(headers);
-            assertEquals(MediaType.APPLICATION_PDF, headers.getContentType());
-            assertNotNull(headers.getContentDisposition());
-
-        } catch (IOException e) {
-            fail("Exception thrown: " + e.getMessage());
-        }
-    }
-}
@@ -143,11 +143,21 @@ class StringToArrayListPropertyEditorTest {
    }

    @Test
-    void testSetAsText_InvalidStructure() {
-        // Arrange - this JSON doesn't match RedactionArea structure
+    void testSetAsText_UnknownProperties() {
+        // Arrange - this JSON contains properties not in RedactionArea
+        // With FAIL_ON_UNKNOWN_PROPERTIES disabled, this should ignore the unknown properties
        String json = "[{\"invalid\":\"structure\"}]";

-        // Act & Assert
-        assertThrows(IllegalArgumentException.class, () -> editor.setAsText(json));
+        // Act
+        editor.setAsText(json);
+        Object value = editor.getValue();
+
+        // Assert
+        assertNotNull(value, "Value should not be null");
+        assertInstanceOf(List.class, value, "Value should be a List");
+
+        @SuppressWarnings("unchecked")
+        List<RedactionArea> list = (List<RedactionArea>) value;
+        assertEquals(1, list.size(), "List should have 1 entry (empty object)");
    }
 }
@@ -12,11 +12,10 @@ configurations {
 spotless {
    java {
        target 'src/**/java/**/*.java'
-        targetExclude 'src/main/resources/static/**'
+        targetExclude 'src/main/resources/static/**', 'src/main/java/org/apache/**'
        googleJavaFormat(googleJavaFormatVersion).aosp().reorderImports(false)

        importOrder("java", "javax", "org", "com", "net", "io", "jakarta", "lombok", "me", "stirling")
-        toggleOffOn()
        trimTrailingWhitespace()
        leadingTabsToSpaces()
        endWithNewline()
@@ -46,8 +45,24 @@ dependencies {

    implementation project(':common')
    implementation 'org.springframework.boot:spring-boot-starter-jetty'
-    implementation 'com.posthog.java:posthog:1.2.0'
-    implementation 'org.telegram:telegrambots:6.9.7.1'
+    implementation 'org.eclipse.jetty.http2:jetty-http2-server'
+    implementation 'org.eclipse.jetty:jetty-alpn-java-server'
+    implementation ('org.telegram:telegrambots:6.9.7.1') {
+        // Grizzly server + Jersey JAX-RS stack: only used for webhook mode;
+        // Stirling-PDF uses long-polling mode so these are dead weight (~3 MB)
+        exclude group: 'org.glassfish.jersey.inject'
+        exclude group: 'org.glassfish.jersey.media'
+        exclude group: 'org.glassfish.jersey.containers'
+        exclude group: 'org.glassfish.jersey.core'
+        exclude group: 'org.glassfish.jersey.ext'
+        exclude group: 'org.glassfish.grizzly'
+        exclude group: 'org.glassfish.hk2'
+        exclude group: 'org.glassfish.hk2.external'
+        exclude group: 'org.javassist', module: 'javassist'
+        // Old javax JAX-RS Jackson bindings (not needed, project uses jakarta)
+        exclude group: 'com.fasterxml.jackson.jaxrs'
+        exclude group: 'com.fasterxml.jackson.module', module: 'jackson-module-jaxb-annotations'
+    }
    implementation 'commons-io:commons-io:2.21.0'
    implementation "org.bouncycastle:bcprov-jdk18on:$bouncycastleVersion"
    implementation "org.bouncycastle:bcpkix-jdk18on:$bouncycastleVersion"
@@ -61,11 +76,14 @@ dependencies {
    implementation "org.apache.pdfbox:xmpbox:$pdfboxVersion"

    implementation 'org.verapdf:validation-model:1.28.2'
+    // CVE-2025-66453: Explicit rhino 1.7.15 to override verapdf's 1.7.13
+    implementation 'org.mozilla:rhino:1.9.1'

    // veraPDF still uses javax.xml.bind, not the new jakarta namespace
    implementation 'javax.xml.bind:jaxb-api:2.3.1'
    implementation 'com.sun.xml.bind:jaxb-impl:2.3.9'
-    implementation 'com.sun.xml.bind:jaxb-core:2.3.0.1'
+    implementation 'com.sun.xml.bind:jaxb-core:4.0.6'
+    implementation 'org.apache.poi:poi-ooxml:5.5.1'

    // https://mvnrepository.com/artifact/technology.tabula/tabula
    implementation ('technology.tabula:tabula:1.0.5')  {
@@ -73,11 +91,17 @@ dependencies {
        exclude group: 'org.bouncycastle', module: 'bcprov-jdk15on'
        exclude group: 'com.google.code.gson', module: 'gson'
    }
+    // CVE-2022-25647: Explicit gson 2.13.2 to prevent unsafe deserialization (tabula would pull 2.8.7)
+    implementation 'com.google.code.gson:gson:2.13.2'
    implementation 'org.apache.pdfbox:jbig2-imageio:3.0.4'
    implementation 'com.opencsv:opencsv:5.12.0' // https://mvnrepository.com/artifact/com.opencsv/opencsv
+    implementation 'org.apache.poi:poi-ooxml:5.5.1'

-    // Batik
-    implementation 'org.apache.xmlgraphics:batik-all:1.19'
+    // Batik only bridge module needed (transitively pulls anim, gvt, util, css, dom, svg-dom)
+    // Replaces batik-all which included unused codec, svggen, transcoder, script modules
+    implementation 'org.apache.xmlgraphics:batik-bridge:1.19'
+    // Required by TwelveMonkeys imageio-batik SPI (SVGImageReaderSpi) during ImageIO init
+    runtimeOnly 'org.apache.xmlgraphics:batik-transcoder:1.19'

    // PDFBox Graphics2D bridge for Batik SVG to PDF conversion
    implementation 'de.rototor.pdfbox:graphics2d:3.0.5'
@@ -88,10 +88,10 @@ public abstract class CreateSignatureBase implements SignatureInterface {
        Certificate cert = null;
        while (cert == null && aliases.hasMoreElements()) {
            alias = aliases.nextElement();
-            setPrivateKey((PrivateKey) keystore.getKey(alias, pin));
+            privateKey = (PrivateKey) keystore.getKey(alias, pin);
            Certificate[] certChain = keystore.getCertificateChain(alias);
            if (certChain != null) {
-                setCertificateChain(certChain);
+                certificateChain = certChain;
                cert = certChain[0];
                if (cert instanceof X509Certificate) {
                    // avoid expired certificate
@@ -49,8 +49,8 @@ public class LibreOfficeListener {
        process = SystemCommand.runCommand(Runtime.getRuntime(), "unoconv --listener");
        lastActivityTime = System.currentTimeMillis();

-        // Start a background thread to monitor the activity timeout
-        executorService = Executors.newSingleThreadExecutor();
+        // Start a virtual thread to monitor the activity timeout
+        executorService = Executors.newVirtualThreadPerTaskExecutor();
        executorService.submit(
                () -> {
                    while (true) {
@@ -9,10 +9,11 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Properties;
+import java.util.regex.Pattern;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.web.context.WebServerInitializedEvent;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.event.EventListener;
 import org.springframework.core.env.Environment;
 import org.springframework.scheduling.annotation.EnableScheduling;
@@ -38,6 +39,10 @@ import stirling.software.common.model.ApplicationProperties;
        })
 public class SPDFApplication {

+    private static final Pattern PORT_SUFFIX_PATTERN = Pattern.compile(".+:\\d+$");
+    private static final Pattern URL_SCHEME_PATTERN =
+            Pattern.compile("^[a-zA-Z][a-zA-Z0-9+.-]*://.*");
+    private static final Pattern TRAILING_SLASH_PATTERN = Pattern.compile("/+$");
    private static String serverPortStatic;
    private static String baseUrlStatic;
    private static String contextPathStatic;
@@ -129,7 +134,7 @@ public class SPDFApplication {
        baseUrlStatic = normalizeBackendUrl(backendUrl, serverPort);
        contextPathStatic = contextPath;
        serverPortStatic = serverPort;
-        String url = buildFullUrl(baseUrlStatic, getStaticPort(), contextPathStatic);
+        String url = buildFullUrl(baseUrlStatic, serverPortStatic, contextPathStatic);

        // Log Tauri mode information
        if (Boolean.parseBoolean(System.getProperty("STIRLING_PDF_TAURI_MODE", "false"))) {
@@ -171,16 +176,19 @@ public class SPDFApplication {
    }

    @EventListener
-    public void onWebServerInitialized(WebServerInitializedEvent event) {
-        int actualPort = event.getWebServer().getPort();
-        serverPortStatic = String.valueOf(actualPort);
+    public void onApplicationReady(ApplicationReadyEvent event) {
+        String port =
+                event.getApplicationContext().getEnvironment().getProperty("local.server.port");
+        if (port != null) {
+            serverPortStatic = port;
+        }
        // Log the actual runtime port for Tauri to parse
-        log.info("Stirling-PDF running on port: {}", actualPort);
+        log.info("Stirling-PDF running on port: {}", serverPortStatic);
    }

    private static void printStartupLogs() {
        log.info("Stirling-PDF Started.");
-        String url = buildFullUrl(baseUrlStatic, getStaticPort(), contextPathStatic);
+        String url = buildFullUrl(baseUrlStatic, serverPortStatic, contextPathStatic);
        log.info("Navigate to {}", url);
    }

@@ -244,8 +252,8 @@ public class SPDFApplication {
        String trimmedBase =
                (backendUrl == null || backendUrl.isBlank())
                        ? "http://localhost"
-                        : backendUrl.trim().replaceAll("/+$", "");
-        boolean hasScheme = trimmedBase.matches("^[a-zA-Z][a-zA-Z0-9+.-]*://.*");
+                        : TRAILING_SLASH_PATTERN.matcher(backendUrl.trim()).replaceAll("");
+        boolean hasScheme = URL_SCHEME_PATTERN.matcher(trimmedBase).matches();
        String baseForParsing = hasScheme ? trimmedBase : "http://" + trimmedBase;
        Integer parsedPort = parsePort(port);

@@ -298,7 +306,7 @@ public class SPDFApplication {
        if (port == null) {
            return trimmedBase;
        }
-        if (trimmedBase.matches(".+:\\d+$")) {
+        if (PORT_SUFFIX_PATTERN.matcher(trimmedBase).matches()) {
            return trimmedBase;
        }
        return trimmedBase + ":" + port;
@@ -104,7 +104,7 @@ public class EndpointInspector implements ApplicationListener<ContextRefreshedEv
            String infoString = mappingInfo.toString();
            if (infoString.contains("{")) {
                String patternsSection =
-                        infoString.substring(infoString.indexOf("{") + 1, infoString.indexOf("}"));
+                        infoString.substring(infoString.indexOf('{') + 1, infoString.indexOf('}'));

                for (String pattern : patternsSection.split(",")) {
                    pattern = pattern.trim();
@@ -51,9 +51,7 @@ public class ExternalAppDepConfig {
     */
    private final Map<String, List<String>> commandToGroupMapping;

-    private final ExecutorService pool =
-            Executors.newFixedThreadPool(
-                    Math.max(2, Runtime.getRuntime().availableProcessors() / 2));
+    private final ExecutorService pool = Executors.newVirtualThreadPerTaskExecutor();

    public ExternalAppDepConfig(
            EndpointConfiguration endpointConfiguration, RuntimePathConfig runtimePathConfig) {
@@ -1,7 +1,7 @@
 package stirling.software.SPDF.config;

 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.web.servlet.MultipartConfigFactory;
+import org.springframework.boot.servlet.MultipartConfigFactory;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.DependsOn;
@@ -54,8 +54,8 @@ public class TauriProcessMonitor {
        scheduler =
                Executors.newSingleThreadScheduledExecutor(
                        r -> {
-                            Thread t = new Thread(r, "tauri-process-monitor");
-                            t.setDaemon(true);
+                            Thread t =
+                                    Thread.ofVirtual().name("tauri-process-monitor").unstarted(r);
                            return t;
                        });

@@ -82,6 +82,9 @@ public class WebMvcConfig implements WebMvcConfigurer {
            logger.info("Tauri mode detected - enabling CORS for Tauri protocols (v1 and v2)");
            registry.addMapping("/**")
                    .allowedOriginPatterns(
+                            "http://localhost:*",
+                            "https://localhost:*",
+                            "tauri://*", // Add this for Tauri apps
                            "tauri://localhost",
                            "http://tauri.localhost",
                            "https://tauri.localhost")
@@ -154,8 +157,8 @@ public class WebMvcConfig implements WebMvcConfigurer {
                    .maxAge(3600);
        } else {
            // Default to allowing all origins when nothing is configured
-            logger.info(
-                    "No CORS allowed origins configured in settings.yml (system.corsAllowedOrigins); allowing all origins.");
+            logger.debug(
+                    "No CORS allowed origins configured in settings.yml (system.corsAllowedOrigins); WebMvcConfig allowing all origins.");
            registry.addMapping("/**")
                    .allowedOriginPatterns("*")
                    .allowedMethods("GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS")
@@ -8,10 +8,12 @@ import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageTree;
+import org.apache.pdfbox.pdmodel.PDResources;
 import org.apache.pdfbox.pdmodel.encryption.PDEncryption;
 import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
 import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
 import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;

 import io.swagger.v3.oas.annotations.Operation;
@@ -35,9 +37,9 @@ public class AnalysisController {
    @Operation(
            summary = "Get PDF page count",
            description = "Returns total number of pages in PDF. Input:PDF Output:JSON Type:SISO")
-    public Map<String, Integer> getPageCount(@ModelAttribute PDFFile file) throws IOException {
+    public ResponseEntity<?> getPageCount(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
-            return Map.of("pageCount", document.getNumberOfPages());
+            return ResponseEntity.ok(Map.of("pageCount", document.getNumberOfPages()));
        }
    }

@@ -46,13 +48,13 @@ public class AnalysisController {
    @Operation(
            summary = "Get basic PDF information",
            description = "Returns page count, version, file size. Input:PDF Output:JSON Type:SISO")
-    public Map<String, Object> getBasicInfo(@ModelAttribute PDFFile file) throws IOException {
+    public ResponseEntity<?> getBasicInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> info = new HashMap<>();
            info.put("pageCount", document.getNumberOfPages());
            info.put("pdfVersion", document.getVersion());
            info.put("fileSize", file.getFileInput().getSize());
-            return info;
+            return ResponseEntity.ok(info);
        }
    }

@@ -63,7 +65,7 @@ public class AnalysisController {
    @Operation(
            summary = "Get PDF document properties",
            description = "Returns title, author, subject, etc. Input:PDF Output:JSON Type:SISO")
-    public Map<String, String> getDocumentProperties(@ModelAttribute PDFFile file)
+    public ResponseEntity<?> getDocumentProperties(@ModelAttribute PDFFile file)
            throws IOException {
        // Load the document in read-only mode to prevent modifications and ensure the integrity of
        // the original file.
@@ -76,9 +78,15 @@ public class AnalysisController {
            properties.put("keywords", info.getKeywords());
            properties.put("creator", info.getCreator());
            properties.put("producer", info.getProducer());
-            properties.put("creationDate", info.getCreationDate().toString());
-            properties.put("modificationDate", info.getModificationDate().toString());
-            return properties;
+            properties.put(
+                    "creationDate",
+                    info.getCreationDate() != null ? info.getCreationDate().toString() : null);
+            properties.put(
+                    "modificationDate",
+                    info.getModificationDate() != null
+                            ? info.getModificationDate().toString()
+                            : null);
+            return ResponseEntity.ok(properties);
        }
    }

@@ -87,8 +95,7 @@ public class AnalysisController {
    @Operation(
            summary = "Get page dimensions for all pages",
            description = "Returns width and height of each page. Input:PDF Output:JSON Type:SISO")
-    public List<Map<String, Float>> getPageDimensions(@ModelAttribute PDFFile file)
-            throws IOException {
+    public ResponseEntity<?> getPageDimensions(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            List<Map<String, Float>> dimensions = new ArrayList<>();
            PDPageTree pages = document.getPages();
@@ -99,7 +106,7 @@ public class AnalysisController {
                pageDim.put("height", page.getBBox().getHeight());
                dimensions.add(pageDim);
            }
-            return dimensions;
+            return ResponseEntity.ok(dimensions);
        }
    }

@@ -109,7 +116,7 @@ public class AnalysisController {
            summary = "Get form field information",
            description =
                    "Returns count and details of form fields. Input:PDF Output:JSON Type:SISO")
-    public Map<String, Object> getFormFields(@ModelAttribute PDFFile file) throws IOException {
+    public ResponseEntity<?> getFormFields(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> formInfo = new HashMap<>();
            PDAcroForm form = document.getDocumentCatalog().getAcroForm();
@@ -123,7 +130,7 @@ public class AnalysisController {
                formInfo.put("hasXFA", false);
                formInfo.put("isSignaturesExist", false);
            }
-            return formInfo;
+            return ResponseEntity.ok(formInfo);
        }
    }

@@ -132,7 +139,7 @@ public class AnalysisController {
    @Operation(
            summary = "Get annotation information",
            description = "Returns count and types of annotations. Input:PDF Output:JSON Type:SISO")
-    public Map<String, Object> getAnnotationInfo(@ModelAttribute PDFFile file) throws IOException {
+    public ResponseEntity<?> getAnnotationInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> annotInfo = new HashMap<>();
            int totalAnnotations = 0;
@@ -148,7 +155,7 @@ public class AnalysisController {

            annotInfo.put("totalCount", totalAnnotations);
            annotInfo.put("typeBreakdown", annotationTypes);
-            return annotInfo;
+            return ResponseEntity.ok(annotInfo);
        }
    }

@@ -158,20 +165,23 @@ public class AnalysisController {
            summary = "Get font information",
            description =
                    "Returns list of fonts used in the document. Input:PDF Output:JSON Type:SISO")
-    public Map<String, Object> getFontInfo(@ModelAttribute PDFFile file) throws IOException {
+    public ResponseEntity<?> getFontInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> fontInfo = new HashMap<>();
            Set<String> fontNames = new HashSet<>();

            for (PDPage page : document.getPages()) {
-                for (COSName font : page.getResources().getFontNames()) {
-                    fontNames.add(font.getName());
+                PDResources resources = page.getResources();
+                if (resources != null) {
+                    for (COSName font : resources.getFontNames()) {
+                        fontNames.add(font.getName());
+                    }
                }
            }

            fontInfo.put("fontCount", fontNames.size());
            fontInfo.put("fonts", fontNames);
-            return fontInfo;
+            return ResponseEntity.ok(fontInfo);
        }
    }

@@ -181,7 +191,7 @@ public class AnalysisController {
            summary = "Get security information",
            description =
                    "Returns encryption and permission details. Input:PDF Output:JSON Type:SISO")
-    public Map<String, Object> getSecurityInfo(@ModelAttribute PDFFile file) throws IOException {
+    public ResponseEntity<?> getSecurityInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> securityInfo = new HashMap<>();
            PDEncryption encryption = document.getEncryption();
@@ -208,7 +218,7 @@ public class AnalysisController {
                securityInfo.put("isEncrypted", false);
            }

-            return securityInfo;
+            return ResponseEntity.ok(securityInfo);
        }
    }
 }
@@ -24,6 +24,7 @@ import io.swagger.v3.oas.annotations.Operation;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;

+import stirling.software.SPDF.config.EndpointConfiguration;
 import stirling.software.SPDF.model.api.general.CropPdfForm;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
@@ -118,6 +119,12 @@ public class CropController {
        return r >= threshold && g >= threshold && b >= threshold;
    }

+    private final EndpointConfiguration endpointConfiguration;
+
+    private boolean isGhostscriptEnabled() {
+        return endpointConfiguration.isGroupEnabled("Ghostscript");
+    }
+
    @AutoJobPostMapping(value = "/crop", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    @Operation(
            summary = "Crops a PDF document",
@@ -137,7 +144,7 @@ public class CropController {
                    "Crop coordinates (x, y, width, height) are required when auto-crop is not enabled");
        }

-        if (request.isRemoveDataOutsideCrop()) {
+        if (request.isRemoveDataOutsideCrop() && isGhostscriptEnabled()) {
            return cropWithGhostscript(request);
        } else {
            return cropWithPDFBox(request);
@@ -15,9 +15,6 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;

-import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.ObjectMapper;
-
 import io.swagger.v3.oas.annotations.Operation;

 import lombok.Getter;
@@ -32,6 +29,9 @@ import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.GeneralUtils;
 import stirling.software.common.util.WebResponseUtils;

+import tools.jackson.core.type.TypeReference;
+import tools.jackson.databind.ObjectMapper;
+
@GeneralApi
@Slf4j
@RequiredArgsConstructor
@@ -8,6 +8,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.List;
+import java.util.regex.Pattern;

 import org.apache.pdfbox.multipdf.PDFMergerUtility;
 import org.apache.pdfbox.pdmodel.PDDocument;
@@ -51,6 +52,7 @@ import stirling.software.common.util.WebResponseUtils;
@RequiredArgsConstructor
 public class MergeController {

+    private static final Pattern QUOTE_WRAP_PATTERN = Pattern.compile("^\"|\"$");
    private final CustomPDFDocumentFactory pdfDocumentFactory;
    private final TempFileManager tempFileManager;

@@ -173,7 +175,7 @@ public class MergeController {
                String[] parts = inside.split(",");
                String[] result = new String[parts.length];
                for (int i = 0; i < parts.length; i++) {
-                    result[i] = parts[i].trim().replaceAll("^\"|\"$", "");
+                    result[i] = QUOTE_WRAP_PATTERN.matcher(parts[i].trim()).replaceAll("");
                }
                return result;
            }
@@ -397,7 +399,12 @@ public class MergeController {
        String mergedFileName =
                GeneralUtils.generateFilename(firstFilename, "_merged_unsigned.pdf");

-        byte[] pdfBytes = Files.readAllBytes(outputTempFile.getPath());
+        byte[] pdfBytes;
+        try {
+            pdfBytes = Files.readAllBytes(outputTempFile.getPath());
+        } finally {
+            outputTempFile.close();
+        }
        return WebResponseUtils.bytesToWebResponse(pdfBytes, mergedFileName);
    }
 }
@@ -1,80 +0,0 @@
-package stirling.software.SPDF.controller.api;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.ModelAttribute;
-
-import io.swagger.v3.oas.annotations.Operation;
-
-import lombok.RequiredArgsConstructor;
-
-import stirling.software.SPDF.config.swagger.StandardPdfResponse;
-import stirling.software.SPDF.service.PdfImageRemovalService;
-import stirling.software.common.annotations.AutoJobPostMapping;
-import stirling.software.common.annotations.api.GeneralApi;
-import stirling.software.common.model.api.PDFFile;
-import stirling.software.common.service.CustomPDFDocumentFactory;
-import stirling.software.common.util.GeneralUtils;
-import stirling.software.common.util.WebResponseUtils;
-
-/**
- * Controller class for handling PDF image removal requests. Provides an endpoint to remove images
- * from a PDF file to reduce its size.
- */
-@GeneralApi
-@RequiredArgsConstructor
-public class PdfImageRemovalController {
-
-    // Service for removing images from PDFs
-    private final PdfImageRemovalService pdfImageRemovalService;
-
-    private final CustomPDFDocumentFactory pdfDocumentFactory;
-
-    /**
-     * Endpoint to remove images from a PDF file.
-     *
-     * <p>This method processes the uploaded PDF file, removes all images, and returns the modified
-     * PDF file with a new name indicating that images were removed.
-     *
-     * @param file The PDF file with images to be removed.
-     * @return ResponseEntity containing the modified PDF file as byte array with appropriate
-     *     content type and filename.
-     * @throws IOException If an error occurs while processing the PDF file.
-     */
-    @AutoJobPostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE, value = "/remove-image-pdf")
-    @StandardPdfResponse
-    @Operation(
-            summary = "Remove images from file to reduce the file size.",
-            description =
-                    "This endpoint remove images from file to reduce the file size.Input:PDF"
-                            + " Output:PDF Type:SISO")
-    public ResponseEntity<byte[]> removeImages(@ModelAttribute PDFFile file) throws IOException {
-        // Load the PDF document with proper resource management
-        try (PDDocument document = pdfDocumentFactory.load(file)) {
-
-            // Remove images from the PDF document using the service
-            try (PDDocument modifiedDocument =
-                    pdfImageRemovalService.removeImagesFromPdf(document)) {
-
-                // Create a ByteArrayOutputStream to hold the modified PDF data
-                ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-
-                // Save the modified PDF document to the output stream
-                modifiedDocument.save(outputStream);
-
-                // Generate a new filename for the modified PDF
-                String mergedFileName =
-                        GeneralUtils.generateFilename(
-                                file.getFileInput().getOriginalFilename(), "_images_removed.pdf");
-
-                // Convert the byte array to a web response and return it
-                return WebResponseUtils.bytesToWebResponse(
-                        outputStream.toByteArray(), mergedFileName);
-            }
-        }
-    }
-}
@@ -194,7 +194,7 @@ public class PdfOverlayController {
            // Load the overlay document to check its page count
            try (PDDocument overlayPdf = Loader.loadPDF(overlayFile)) {
                int overlayPageCount = overlayPdf.getNumberOfPages();
-                for (int j = 0; j < repeatCount; j++) {
+                for (int j = 0; j < repeatCount && currentPage <= basePageCount; j++) {
                    for (int page = 0; page < overlayPageCount; page++) {
                        if (currentPage > basePageCount) break;
                        overlayGuide.put(currentPage++, overlayFile.getAbsolutePath());
@@ -0,0 +1,275 @@
+package stirling.software.SPDF.controller.api;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+import org.apache.pdfbox.multipdf.LayerUtility;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.common.PDRectangle;
+import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
+import org.apache.pdfbox.util.Matrix;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;
+
+import io.swagger.v3.oas.annotations.Operation;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+import stirling.software.SPDF.config.swagger.MultiFileResponse;
+import stirling.software.SPDF.model.api.general.PosterPdfRequest;
+import stirling.software.common.annotations.AutoJobPostMapping;
+import stirling.software.common.annotations.api.GeneralApi;
+import stirling.software.common.service.CustomPDFDocumentFactory;
+import stirling.software.common.util.ExceptionUtils;
+import stirling.software.common.util.GeneralUtils;
+import stirling.software.common.util.TempFile;
+import stirling.software.common.util.TempFileManager;
+import stirling.software.common.util.WebResponseUtils;
+
+@GeneralApi
+@Slf4j
+@RequiredArgsConstructor
+public class PosterPdfController {
+
+    private final CustomPDFDocumentFactory pdfDocumentFactory;
+    private final TempFileManager tempFileManager;
+
+    @AutoJobPostMapping(value = "/split-for-poster-print", consumes = "multipart/form-data")
+    @MultiFileResponse
+    @Operation(
+            summary = "Split large PDF pages into smaller printable chunks",
+            description =
+                    "This endpoint splits large or oddly-sized PDF pages into smaller chunks "
+                            + "suitable for printing on standard paper sizes (e.g., A4, Letter). "
+                            + "Divides each page into a grid of smaller pages using Apache PDFBox. "
+                            + "Input: PDF Output: ZIP-PDF Type: SISO")
+    public ResponseEntity<StreamingResponseBody> posterPdf(@ModelAttribute PosterPdfRequest request)
+            throws Exception {
+
+        log.debug("Starting PDF poster split process with request: {}", request);
+        MultipartFile file = request.getFileInput();
+
+        String filename = GeneralUtils.generateFilename(file.getOriginalFilename(), "");
+        log.debug("Base filename for output: {}", filename);
+
+        TempFile zipTempFile = new TempFile(tempFileManager, ".zip");
+        try {
+            try (PDDocument sourceDocument = pdfDocumentFactory.load(file);
+                    PDDocument outputDocument =
+                            pdfDocumentFactory.createNewDocumentBasedOnOldDocument(sourceDocument);
+                    TempFile pdfTempFile = new TempFile(tempFileManager, ".pdf")) {
+
+                // Get target page size
+                PDRectangle targetPageSize = getTargetPageSize(request.getPageSize());
+                log.debug(
+                        "Target page size: {} ({}x{})",
+                        request.getPageSize(),
+                        targetPageSize.getWidth(),
+                        targetPageSize.getHeight());
+
+                // Create LayerUtility for importing pages as forms
+                LayerUtility layerUtility = new LayerUtility(outputDocument);
+
+                int totalPages = sourceDocument.getNumberOfPages();
+                int xFactor = request.getXFactor();
+                int yFactor = request.getYFactor();
+                boolean rightToLeft = request.isRightToLeft();
+
+                log.debug(
+                        "Processing {} pages with grid {}x{}, RTL={}",
+                        totalPages,
+                        xFactor,
+                        yFactor,
+                        rightToLeft);
+
+                // Process each page
+                for (int pageIndex = 0; pageIndex < totalPages; pageIndex++) {
+                    PDPage sourcePage = sourceDocument.getPage(pageIndex);
+
+                    // Get both MediaBox and CropBox
+                    PDRectangle mediaBox = sourcePage.getMediaBox();
+                    PDRectangle cropBox = sourcePage.getCropBox();
+
+                    // If no CropBox is set, use MediaBox
+                    if (cropBox == null) {
+                        cropBox = mediaBox;
+                    }
+
+                    // Save original boxes for restoration
+                    PDRectangle originalMediaBox = sourcePage.getMediaBox();
+                    PDRectangle originalCropBox = sourcePage.getCropBox();
+
+                    // Normalize the page: set MediaBox to CropBox
+                    // This ensures the form's coordinate space starts at (0, 0)
+                    // instead of having an offset from the original MediaBox
+                    sourcePage.setMediaBox(cropBox);
+                    sourcePage.setCropBox(cropBox);
+
+                    // Handle page rotation
+                    int rotation = sourcePage.getRotation();
+                    float sourceWidth = cropBox.getWidth();
+                    float sourceHeight = cropBox.getHeight();
+
+                    // Swap dimensions if rotated 90 or 270 degrees
+                    if (rotation == 90 || rotation == 270) {
+                        float temp = sourceWidth;
+                        sourceWidth = sourceHeight;
+                        sourceHeight = temp;
+                    }
+
+                    log.debug(
+                            "Page {}: Normalized to CropBox dimensions {}x{}, rotation {}",
+                            pageIndex,
+                            sourceWidth,
+                            sourceHeight,
+                            rotation);
+
+                    // Import source page as form (now with normalized coordinate space)
+                    PDFormXObject form = layerUtility.importPageAsForm(sourceDocument, pageIndex);
+
+                    // Restore original boxes
+                    sourcePage.setMediaBox(originalMediaBox);
+                    sourcePage.setCropBox(originalCropBox);
+
+                    // Calculate cell dimensions in source page coordinates
+                    float cellWidth = sourceWidth / xFactor;
+                    float cellHeight = sourceHeight / yFactor;
+
+                    // Create grid cells (rows × columns)
+                    for (int row = 0; row < yFactor; row++) {
+                        for (int col = 0; col < xFactor; col++) {
+                            // Apply RTL ordering for columns if enabled
+                            int actualCol = rightToLeft ? (xFactor - 1 - col) : col;
+
+                            // Calculate crop rectangle in source coordinates
+                            // PDF coordinates start at bottom-left
+                            float cropX = actualCol * cellWidth;
+                            // For Y: invert so row 0 shows TOP (following
+                            // SplitPdfBySectionsController
+                            // pattern)
+                            float cropY = (yFactor - 1 - row) * cellHeight;
+
+                            // Create new output page with target size
+                            PDPage outputPage = new PDPage(targetPageSize);
+                            outputDocument.addPage(outputPage);
+
+                            try (PDPageContentStream contentStream =
+                                    new PDPageContentStream(
+                                            outputDocument,
+                                            outputPage,
+                                            PDPageContentStream.AppendMode.APPEND,
+                                            true,
+                                            true)) {
+
+                                // Calculate uniform scale to fit cell into target page
+                                // Scale UP if cell is smaller than target, scale DOWN if larger
+                                float scaleX = targetPageSize.getWidth() / cellWidth;
+                                float scaleY = targetPageSize.getHeight() / cellHeight;
+                                float scale = Math.min(scaleX, scaleY);
+
+                                // Center the scaled content on the target page
+                                float scaledCellWidth = cellWidth * scale;
+                                float scaledCellHeight = cellHeight * scale;
+                                float offsetX = (targetPageSize.getWidth() - scaledCellWidth) / 2;
+                                float offsetY = (targetPageSize.getHeight() - scaledCellHeight) / 2;
+
+                                // Apply transformations
+                                contentStream.saveGraphicsState();
+
+                                // Translate to center position
+                                contentStream.transform(
+                                        Matrix.getTranslateInstance(offsetX, offsetY));
+
+                                // Scale uniformly
+                                contentStream.transform(Matrix.getScaleInstance(scale, scale));
+
+                                // Translate to show only the desired grid cell
+                                // IMPORTANT: The PDFormXObject's BBox already matches the CropBox
+                                // (including its offset), so we only need to translate by
+                                // cropX/cropY
+                                // relative to the CropBox origin, NOT the MediaBox origin
+                                contentStream.transform(
+                                        Matrix.getTranslateInstance(-cropX, -cropY));
+
+                                // Draw the form
+                                contentStream.drawForm(form);
+
+                                contentStream.restoreGraphicsState();
+                            }
+
+                            log.trace(
+                                    "Created output page for grid cell [{},{}] of page {}: cropX={}, cropY={}, translate=({}, {})",
+                                    row,
+                                    actualCol,
+                                    pageIndex,
+                                    cropX,
+                                    cropY,
+                                    -cropX,
+                                    -cropY);
+                        }
+                    }
+                }
+
+                // Save output PDF to intermediate TempFile
+                outputDocument.save(pdfTempFile.getFile());
+                log.debug("Generated output PDF with {} pages", outputDocument.getNumberOfPages());
+
+                // Create ZIP from the PDF TempFile, streaming directly to zip TempFile
+                try (ZipOutputStream zipOut =
+                        new ZipOutputStream(Files.newOutputStream(zipTempFile.getPath()))) {
+                    zipOut.putNextEntry(new ZipEntry(filename + "_poster.pdf"));
+                    Files.copy(pdfTempFile.getPath(), zipOut);
+                    zipOut.closeEntry();
+                }
+                // pdfTempFile auto-closed and deleted here (end of inner try-with-resources)
+            }
+
+            log.debug("Successfully created ZIP");
+            return WebResponseUtils.zipFileToWebResponse(zipTempFile, filename + "_poster.zip");
+
+        } catch (IOException e) {
+            ExceptionUtils.logException("PDF poster split process", e);
+            zipTempFile.close();
+            throw e;
+        } catch (Exception e) {
+            zipTempFile.close();
+            throw e;
+        }
+    }
+
+    /**
+     * Maps page size string to PDRectangle.
+     *
+     * @param pageSize the page size name (e.g., "A4", "Letter")
+     * @return the corresponding PDRectangle
+     * @throws IllegalArgumentException if page size is not supported
+     */
+    private PDRectangle getTargetPageSize(String pageSize) {
+        Map<String, PDRectangle> sizeMap = new HashMap<>();
+        sizeMap.put("A4", PDRectangle.A4);
+        sizeMap.put("Letter", PDRectangle.LETTER);
+        sizeMap.put("A3", PDRectangle.A3);
+        sizeMap.put("A5", PDRectangle.A5);
+        sizeMap.put("Legal", PDRectangle.LEGAL);
+        sizeMap.put("Tabloid", new PDRectangle(792, 1224)); // 11x17 inches
+
+        PDRectangle size = sizeMap.get(pageSize);
+        if (size == null) {
+            throw ExceptionUtils.createIllegalArgumentException(
+                    "error.invalidPageSize",
+                    "Invalid page size: {0}",
+                    pageSize,
+                    String.join(", ", sizeMap.keySet()));
+        }
+        return size;
+    }
+}
@@ -150,28 +150,6 @@ public class RearrangePagesPDFController {
        return newPageOrder;
    }

-    /**
-     * Rearrange pages in a PDF file by merging odd and even pages. The first half of the pages will
-     * be the odd pages, and the second half will be the even pages as input. <br>
-     * This method is visible for testing purposes only.
-     *
-     * @param totalPages Total number of pages in the PDF file.
-     * @return List of page numbers in the new order. The first page is 0.
-     */
-    List<Integer> oddEvenMerge(int totalPages) {
-        List<Integer> newPageOrderZeroBased = new ArrayList<>();
-        int numberOfOddPages = (totalPages + 1) / 2;
-
-        for (int oneBasedIndex = 1; oneBasedIndex < (numberOfOddPages + 1); oneBasedIndex++) {
-            newPageOrderZeroBased.add((oneBasedIndex - 1));
-            if (numberOfOddPages + oneBasedIndex <= totalPages) {
-                newPageOrderZeroBased.add((numberOfOddPages + oneBasedIndex - 1));
-            }
-        }
-
-        return newPageOrderZeroBased;
-    }
-
    private List<Integer> duplicate(int totalPages, String pageOrder) {
        List<Integer> newPageOrder = new ArrayList<>();
        int duplicateCount;
@@ -191,6 +169,14 @@ public class RearrangePagesPDFController {
        if (duplicateCount < 1) {
            duplicateCount = 2; // Default to 2 if invalid input
        }
+        int maxDuplicateCount = Math.max(100, totalPages * 3);
+        if (duplicateCount > maxDuplicateCount) {
+            throw ExceptionUtils.createIllegalArgumentException(
+                    "error.invalidFormat",
+                    "Invalid {0} format: {1}",
+                    "duplicateCount",
+                    "must not exceed " + maxDuplicateCount);
+        }

        // For each page in the document
        for (int pageNum = 0; pageNum < totalPages; pageNum++) {
@@ -212,7 +198,6 @@ public class RearrangePagesPDFController {
                case BOOKLET_SORT -> bookletSort(totalPages);
                case SIDE_STITCH_BOOKLET_SORT -> sideStitchBooklet(totalPages);
                case ODD_EVEN_SPLIT -> oddEvenSplit(totalPages);
-                case ODD_EVEN_MERGE -> oddEvenMerge(totalPages);
                case REMOVE_FIRST -> removeFirst(totalPages);
                case REMOVE_LAST -> removeLast(totalPages);
                case REMOVE_FIRST_AND_LAST -> removeFirstAndLast(totalPages);
@@ -1,6 +1,5 @@
 package stirling.software.SPDF.controller.api;

-import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.util.ArrayList;
@@ -10,11 +9,11 @@ import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;

 import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDPage;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;

 import io.swagger.v3.oas.annotations.Operation;

@@ -49,83 +48,60 @@ public class SplitPDFController {
                            + " specified page numbers or ranges. Users can specify pages using"
                            + " individual numbers, ranges, or 'all' for every page. Input:PDF"
                            + " Output:PDF Type:SIMO")
-    public ResponseEntity<byte[]> splitPdf(@ModelAttribute PDFWithPageNums request)
+    public ResponseEntity<StreamingResponseBody> splitPdf(@ModelAttribute PDFWithPageNums request)
            throws IOException {

        MultipartFile file = request.getFileInput();
-
-        try (TempFile outputTempFile = new TempFile(tempFileManager, ".zip");
-                PDDocument document = pdfDocumentFactory.load(file)) {
-
-            List<ByteArrayOutputStream> splitDocumentsBoas = new ArrayList<>();
-
-            int totalPages = document.getNumberOfPages();
-            List<Integer> pageNumbers = request.getPageNumbersList(document, false);
-            if (!pageNumbers.contains(totalPages - 1)) {
-                // Create a mutable ArrayList so we can add to it
-                pageNumbers = new ArrayList<>(pageNumbers);
-                pageNumbers.add(totalPages - 1);
-            }
-
-            log.debug(
-                    "Splitting PDF into pages: {}",
-                    pageNumbers.stream().map(String::valueOf).collect(Collectors.joining(",")));
-
-            splitDocumentsBoas = new ArrayList<>(pageNumbers.size());
-            int previousPageNumber = 0;
-            for (int splitPoint : pageNumbers) {
-                try (PDDocument splitDocument =
-                                pdfDocumentFactory.createNewDocumentBasedOnOldDocument(document);
-                        ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
-                    for (int i = previousPageNumber; i <= splitPoint; i++) {
-                        PDPage page = document.getPage(i);
-                        splitDocument.addPage(page);
-                        log.debug("Adding page {} to split document", i);
-                    }
-                    previousPageNumber = splitPoint + 1;
-
-                    // Transfer metadata to split pdf
-                    // PdfMetadataService.setMetadataToPdf(splitDocument, metadata);
-
-                    splitDocument.save(baos);
-                    splitDocumentsBoas.add(baos);
-                } catch (Exception e) {
-                    ExceptionUtils.logException("document splitting and saving", e);
-                    throw e;
+        TempFile outputTempFile = new TempFile(tempFileManager, ".zip");
+        try {
+            try (PDDocument document = pdfDocumentFactory.load(file)) {
+                int totalPages = document.getNumberOfPages();
+                List<Integer> pageNumbers = request.getPageNumbersList(document, false);
+                if (!pageNumbers.contains(totalPages - 1)) {
+                    pageNumbers = new ArrayList<>(pageNumbers);
+                    pageNumbers.add(totalPages - 1);
                }
-            }

-            String baseFilename = GeneralUtils.removeExtension(file.getOriginalFilename());
+                log.debug(
+                        "Splitting PDF into pages: {}",
+                        pageNumbers.stream().map(String::valueOf).collect(Collectors.joining(",")));

-            try (ZipOutputStream zipOut =
-                    new ZipOutputStream(Files.newOutputStream(outputTempFile.getPath()))) {
-                int splitDocumentsSize = splitDocumentsBoas.size();
-                for (int i = 0; i < splitDocumentsSize; i++) {
-                    StringBuilder sb = new StringBuilder(baseFilename.length() + 10);
-                    sb.append(baseFilename).append('_').append(i + 1).append(".pdf");
-                    String fileName = sb.toString();
+                String baseFilename = GeneralUtils.removeExtension(file.getOriginalFilename());
+                try (ZipOutputStream zipOut =
+                        new ZipOutputStream(Files.newOutputStream(outputTempFile.getPath()))) {
+                    int previousPageNumber = 0;
+                    for (int splitIndex = 0; splitIndex < pageNumbers.size(); splitIndex++) {
+                        int splitPoint = pageNumbers.get(splitIndex);
+                        try (PDDocument splitDocument =
+                                pdfDocumentFactory.createNewDocumentBasedOnOldDocument(document)) {
+                            for (int i = previousPageNumber; i <= splitPoint; i++) {
+                                splitDocument.addPage(document.getPage(i));
+                                log.debug("Adding page {} to split document", i);
+                            }
+                            previousPageNumber = splitPoint + 1;

-                    ByteArrayOutputStream baos = splitDocumentsBoas.get(i);
-                    byte[] pdf = baos.toByteArray();
-
-                    ZipEntry pdfEntry = new ZipEntry(fileName);
-                    zipOut.putNextEntry(pdfEntry);
-                    zipOut.write(pdf);
-                    zipOut.closeEntry();
-
-                    log.debug("Wrote split document {} to zip file", fileName);
+                            String fileName = baseFilename + "_" + (splitIndex + 1) + ".pdf";
+                            zipOut.putNextEntry(new ZipEntry(fileName));
+                            splitDocument.save(zipOut);
+                            zipOut.closeEntry();
+                            log.debug("Wrote split document {} to zip file", fileName);
+                        } catch (Exception e) {
+                            ExceptionUtils.logException("document splitting and saving", e);
+                            throw e;
+                        }
+                    }
                }
            }

            log.debug(
                    "Successfully created zip file with split documents: {}",
                    outputTempFile.getPath().toString());
-            byte[] data = Files.readAllBytes(outputTempFile.getPath());
-
            String zipFilename =
                    GeneralUtils.generateFilename(file.getOriginalFilename(), "_split.zip");
-            return WebResponseUtils.bytesToWebResponse(
-                    data, zipFilename, MediaType.APPLICATION_OCTET_STREAM);
+            return WebResponseUtils.zipFileToWebResponse(outputTempFile, zipFilename);
+        } catch (Exception e) {
+            outputTempFile.close();
+            throw e;
        }
    }
 }
@@ -1,8 +1,6 @@
 package stirling.software.SPDF.controller.api;

-import java.io.ByteArrayOutputStream;
 import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
@@ -17,6 +15,7 @@ import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;

 import io.swagger.v3.oas.annotations.Operation;

@@ -36,6 +35,8 @@ import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.service.PdfMetadataService;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
+import stirling.software.common.util.TempFile;
+import stirling.software.common.util.TempFileManager;
 import stirling.software.common.util.WebResponseUtils;

@GeneralApi
@@ -47,6 +48,8 @@ public class SplitPdfByChaptersController {

    private final CustomPDFDocumentFactory pdfDocumentFactory;

+    private final TempFileManager tempFileManager;
+
    private static List<Bookmark> extractOutlineItems(
            PDDocument sourceDocument,
            PDOutlineItem current,
@@ -122,22 +125,19 @@ public class SplitPdfByChaptersController {
    @Operation(
            summary = "Split PDFs by Chapters",
            description = "Splits a PDF into chapters and returns a ZIP file.")
-    public ResponseEntity<byte[]> splitPdf(@ModelAttribute SplitPdfByChaptersRequest request)
-            throws Exception {
+    public ResponseEntity<StreamingResponseBody> splitPdf(
+            @ModelAttribute SplitPdfByChaptersRequest request) throws Exception {
        MultipartFile file = request.getFileInput();
-        PDDocument sourceDocument = null;
-        Path zipFile = null;

-        try {
-            boolean includeMetadata = Boolean.TRUE.equals(request.getIncludeMetadata());
-            Integer bookmarkLevel =
-                    request.getBookmarkLevel(); // levels start from 0 (top most bookmarks)
-            if (bookmarkLevel < 0) {
-                throw ExceptionUtils.createIllegalArgumentException(
-                        "error.invalidArgument", "Invalid argument: {0}", "bookmark level");
-            }
-            sourceDocument = pdfDocumentFactory.load(file);
+        boolean includeMetadata = Boolean.TRUE.equals(request.getIncludeMetadata());
+        Integer bookmarkLevel =
+                request.getBookmarkLevel(); // levels start from 0 (top most bookmarks)
+        if (bookmarkLevel < 0) {
+            throw ExceptionUtils.createIllegalArgumentException(
+                    "error.invalidArgument", "Invalid argument: {0}", "bookmark level");
+        }

+        try (PDDocument sourceDocument = pdfDocumentFactory.load(file)) {
            PDDocumentOutline outline = sourceDocument.getDocumentCatalog().getDocumentOutline();

            if (outline == null) {
@@ -157,12 +157,10 @@ public class SplitPdfByChaptersController {
                                bookmarkLevel);
                // to handle last page edge case
                bookmarks.get(bookmarks.size() - 1).setEndPage(sourceDocument.getNumberOfPages());
-                Bookmark lastBookmark = bookmarks.get(bookmarks.size() - 1);

            } catch (Exception e) {
                ExceptionUtils.logException("outline extraction", e);
-                return ResponseEntity.internalServerError()
-                        .body("Unable to extract outline items".getBytes());
+                throw e;
            }

            boolean allowDuplicates = Boolean.TRUE.equals(request.getAllowDuplicates());
@@ -181,29 +179,10 @@ public class SplitPdfByChaptersController {
                        bookmark.getStartPage(),
                        bookmark.getEndPage());
            }
-            List<ByteArrayOutputStream> splitDocumentsBoas =
-                    getSplitDocumentsBoas(sourceDocument, bookmarks, includeMetadata);
-
-            zipFile = createZipFile(bookmarks, splitDocumentsBoas);
-
-            byte[] data = Files.readAllBytes(zipFile);
-            Files.deleteIfExists(zipFile);

+            TempFile zipTempFile = createZipFile(sourceDocument, bookmarks, includeMetadata);
            String filename = GeneralUtils.generateFilename(file.getOriginalFilename(), "");
-            sourceDocument.close();
-            return WebResponseUtils.bytesToWebResponse(
-                    data, filename + ".zip", MediaType.APPLICATION_OCTET_STREAM);
-        } finally {
-            try {
-                if (sourceDocument != null) {
-                    sourceDocument.close();
-                }
-                if (zipFile != null) {
-                    Files.deleteIfExists(zipFile);
-                }
-            } catch (Exception e) {
-                log.error("Error while cleaning up resources", e);
-            }
+            return WebResponseUtils.zipFileToWebResponse(zipTempFile, filename + ".zip");
        }
    }

@@ -232,72 +211,55 @@ public class SplitPdfByChaptersController {
        return bookmarks;
    }

-    private Path createZipFile(
-            List<Bookmark> bookmarks, List<ByteArrayOutputStream> splitDocumentsBoas)
-            throws Exception {
-        Path zipFile = Files.createTempFile("split_documents", ".zip");
-        String fileNumberFormatter = "%0" + (Integer.toString(bookmarks.size()).length()) + "d ";
-        try (ZipOutputStream zipOut = new ZipOutputStream(Files.newOutputStream(zipFile))) {
-            for (int i = 0; i < splitDocumentsBoas.size(); i++) {
-
-                // split files will be named as "[FILE_NUMBER] [BOOKMARK_TITLE].pdf"
-
-                String fileName =
-                        String.format(Locale.ROOT, fileNumberFormatter, i)
-                                + bookmarks.get(i).getTitle()
-                                + ".pdf";
-                ByteArrayOutputStream baos = splitDocumentsBoas.get(i);
-                byte[] pdf = baos.toByteArray();
-
-                ZipEntry pdfEntry = new ZipEntry(fileName);
-                zipOut.putNextEntry(pdfEntry);
-                zipOut.write(pdf);
-                zipOut.closeEntry();
-
-                log.debug("Wrote split document {} to zip file", fileName);
-            }
-        } catch (Exception e) {
-            log.error("Failed writing to zip", e);
-            throw e;
-        }
-
-        log.info("Successfully created zip file with split documents: {}", zipFile);
-        return zipFile;
-    }
-
-    public List<ByteArrayOutputStream> getSplitDocumentsBoas(
+    private TempFile createZipFile(
            PDDocument sourceDocument, List<Bookmark> bookmarks, boolean includeMetadata)
            throws Exception {
-        List<ByteArrayOutputStream> splitDocumentsBoas = new ArrayList<>();
-        PdfMetadata metadata = null;
-        if (includeMetadata) {
-            metadata = pdfMetadataService.extractMetadataFromPdf(sourceDocument);
-        }
-        for (Bookmark bookmark : bookmarks) {
-            try (PDDocument splitDocument = new PDDocument()) {
-                boolean isSinglePage = (bookmark.getStartPage() == bookmark.getEndPage());
+        PdfMetadata metadata =
+                includeMetadata ? pdfMetadataService.extractMetadataFromPdf(sourceDocument) : null;
+        String fileNumberFormatter = "%0" + (Integer.toString(bookmarks.size()).length()) + "d ";
+        TempFile zipTempFile = new TempFile(tempFileManager, ".zip");
+        try {
+            try (ZipOutputStream zipOut =
+                    new ZipOutputStream(Files.newOutputStream(zipTempFile.getPath()))) {
+                for (int i = 0; i < bookmarks.size(); i++) {
+                    Bookmark bookmark = bookmarks.get(i);
+                    try (PDDocument splitDocument = new PDDocument()) {
+                        boolean isSinglePage = (bookmark.getStartPage() == bookmark.getEndPage());

-                for (int i = bookmark.getStartPage();
-                        i < bookmark.getEndPage() + (isSinglePage ? 1 : 0);
-                        i++) {
-                    PDPage page = sourceDocument.getPage(i);
-                    splitDocument.addPage(page);
-                    log.debug("Adding page {} to split document", i);
+                        for (int pg = bookmark.getStartPage();
+                                pg < bookmark.getEndPage() + (isSinglePage ? 1 : 0);
+                                pg++) {
+                            PDPage page = sourceDocument.getPage(pg);
+                            splitDocument.addPage(page);
+                            log.debug("Adding page {} to split document", pg);
+                        }
+                        if (includeMetadata) {
+                            pdfMetadataService.setMetadataToPdf(splitDocument, metadata);
+                        }
+
+                        // split files will be named as "[FILE_NUMBER] [BOOKMARK_TITLE].pdf"
+                        String fileName =
+                                String.format(Locale.ROOT, fileNumberFormatter, i)
+                                        + bookmark.getTitle()
+                                        + ".pdf";
+                        zipOut.putNextEntry(new ZipEntry(fileName));
+                        splitDocument.save(zipOut);
+                        zipOut.closeEntry();
+                        log.debug("Wrote split document {} to zip file", fileName);
+                    } catch (Exception e) {
+                        ExceptionUtils.logException("document splitting and saving", e);
+                        throw e;
+                    }
                }
-                ByteArrayOutputStream baos = new ByteArrayOutputStream();
-                if (includeMetadata) {
-                    pdfMetadataService.setMetadataToPdf(splitDocument, metadata);
-                }
-
-                splitDocument.save(baos);
-
-                splitDocumentsBoas.add(baos);
-            } catch (Exception e) {
-                ExceptionUtils.logException("document splitting and saving", e);
-                throw e;
            }
+            log.info(
+                    "Successfully created zip file with split documents: {}",
+                    zipTempFile.getPath());
+            return zipTempFile;
+        } catch (Exception e) {
+            zipTempFile.close();
+            throw e;
        }
-        return splitDocumentsBoas;
    }
 }

@@ -23,6 +23,8 @@ import org.springframework.web.multipart.MultipartFile;

 import io.swagger.v3.oas.annotations.Operation;

+import jakarta.validation.Valid;
+
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;

@@ -57,7 +59,7 @@ public class SplitPdfBySectionsController {
                            + " which page to split, and how to split"
                            + " ( halves, thirds, quarters, etc.), both vertically and horizontally."
                            + " Input:PDF Output:ZIP-PDF Type:SISO")
-    public ResponseEntity<byte[]> splitPdf(@ModelAttribute SplitPdfBySectionsRequest request)
+    public ResponseEntity<byte[]> splitPdf(@Valid @ModelAttribute SplitPdfBySectionsRequest request)
            throws Exception {
        MultipartFile file = request.getFileInput();
        String pageNumbers = request.getPageNumbers();
--- a/Show More
+++ b/Show More