AI features (per Connor): - The "Anthropic — receives prompts and queries only" representation was not truthful: document text/excerpts are sent to Claude to perform the requested task. Aligned Anthropic's description with Voyage's (both receive extracted document text/excerpts, not whole files) across the EULA §8, DPA §C5, and the subprocessor page. - Replaced the absolute "your files are never transmitted to any AI provider" with an accurate statement: only the document text/excerpts needed for a requested feature are sent, never whole files, and only when that feature runs. - Made explicit that AI features are optional and can be disabled. Threshold billing (EULA §4.4): removed — not a shipped capability (its source note said "remove if not shipped"). Renumbered 4.5/4.6. FLAG for Matt/counsel: this diverges from the source bundle's "no customer files ever transmitted to AI providers / Anthropic prompts-only" line, which was marked "verified against signed provider agreements." The no-training representation is retained but must be re-verified now that document content is acknowledged as sent to Anthropic. Still DRAFT.
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.

