Stirling-PDF
Self-hosted PDF editing and conversion tools
FreeDocsOpen Source1 impressions
Stirling PDF is a self-hosted, open-source PDF editor, reader and batch processor you can run on any infrastructure.
- for
- Developers and teams needing private, programmable PDF manipulation.
- pricing
- free
- license
- open source
- v3.1.03.1.0 Stirling Sign, signature improvements, Stirling Office Convert (beta) and 3 days ago
- v3.0.23.0.2 bug fixes and dependency updates7 days ago
- v3.0.13.0.1 hotfix for windows desktop bugs12 days ago
Key features
- PDF Reader — Fast viewing with simple tools for casual use.
- PDF Editor — 60+ editing tools for PDFs on any computer or server.
- PDF Processor — Batch-process thousands of PDFs with AI-driven pipelines.
- Stirling API — All PDF operations callable via REST for integration into code.
- Policies & Rules — Apply approval-based rule changes and log every action.
- Connectors — Integrate with existing tools such as SharePoint and custom services.
Use cases
- Edit a single contract and redact confidential fields in the browser.
- Automate processing of 10 000 incoming PDFs with OCR, classification and routing to SharePoint.
- Embed PDF generation and conversion into a CI/CD pipeline via the REST API.
- Create an AI-driven document workflow that validates signatures and compresses files before archiving.
Stirling-PDF FAQ
We already pay for Acrobat. Why switch?+
Stirling PDF runs locally, keeping files private and avoiding third-party cloud storage.
Where do our files actually go?+
Files stay on the machine or infrastructure where Stirling is deployed; no external upload.
What counts as a run?+
Each API call or user-initiated operation on a PDF is considered a run.
What happens when we pass 100 users?+
The platform is self-hosted, so scaling to more users is managed by your own infrastructure.
Is it really open source?+
Yes, the source code is publicly available for audit and verification.
Summarized by DevHunt from stirlingpdf.com · Oct 7, 2026. Details may change; check the official site.
About this listing
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