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.

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

• Documentation
• Homepage
• API Docs
• Server Plan & Enterprise

Support

• Community Discord
• Bug Reports: Github issues

Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

For development setup, see the Developer Guide.

For adding translations, see the Translation Guide.

License

Stirling PDF is open-core. See LICENSE for details.