# Description of Changes Change pipelines so that sources and triggers are grouped into a list of inputs, so you can have a different trigger for each source in the list. This is necessary because triggers are not universally supported by all source types. If you wanted to have a pipeline pull from both a folder and an S3 bucket, the current system allows you to choose "Folder Watch" as the trigger, which will either do nothing or crash when it's paired with the S3 bucket. I've got reservations about actually allowing different triggers for every source because it allows for user workflows that I don't believe exist, like "I want this folder to be polled every minute and this other one to be polled every hour, but they should run the same tools and should output to the same place". Because of this (with agreement from Connor, Anthony and Matt) I've changed this PR to artificially limit pipelines to having 1 input & output at this stage. The backend is still shaped to support multiple inputs & outputs so it should be trivial to re-add support for them in the future if we decide we want to, but the UI can be much simpler and easier to understand with just 1 input and output. <img width="1262" height="521" alt="image" src="https://github.com/user-attachments/assets/809e6803-9f99-436d-9aeb-52dddf0906ff" />
Stirling PDF - The Open-Source PDF Platform
Stirling PDF is a powerful, open-source PDF editing platform. Run it as a personal desktop app, in the browser, or deploy it on your own servers with a private API. Edit, sign, redact, convert, and automate PDFs without sending documents to external services.
Key Capabilities
- Everywhere you work - Desktop client, browser UI, and self-hosted server with a private API.
- 50+ PDF tools - Edit, merge, split, sign, redact, convert, OCR, compress, and more.
- Automation & workflows - No-code pipelines direct in UI with APIs to process millions of PDFs.
- Enterprise‑grade - SSO, auditing, and flexible on‑prem deployments.
- Developer platform - REST APIs available for nearly all tools to integrate into your existing systems.
- Global UI - Interface available in 40+ languages.
For a full feature list, see the docs: https://docs.stirlingpdf.com
Quick Start
docker run -p 8080:8080 docker.stirlingpdf.com/stirlingtools/stirling-pdf
Then open: http://localhost:8080
For full installation options (including desktop and Kubernetes), see our Documentation Guide.
Resources
Support
- Community: Discord
- Bug Reports: GitHub Issues
Contributing
We welcome contributions! Please see CONTRIBUTING.md for guidelines.
This project uses Task as a unified command runner for all build, dev, and test commands. Run task dev to get started running the editor, run task to see the most common commands, or see the Developer Guide for full details.
For adding translations, see the Translation Guide.
License
Stirling PDF is open-core. See LICENSE for details.

