All-in-one PDF manipulation tool with a clean web UI. Merge, split, convert, OCR, sign - all self-hosted and private.
Stirling PDF is a powerful, open-source PDF manipulation tool with over 75,000 GitHub stars. It provides a clean web interface for every PDF operation you can think of - merging, splitting, rotating, converting, OCR, digital signatures, and dozens more.
Unlike cloud-based PDF tools (Adobe Acrobat, Smallpdf, iLovePDF), Stirling PDF runs entirely on your own server. Your documents never leave your infrastructure. No file size limits, no watermarks, no per-page charges, and complete privacy for sensitive documents.
Combine multiple PDFs into one or split a PDF into separate pages. Rearrange page order with drag-and-drop.
Convert between PDF, Word, Excel, PowerPoint, images, and HTML. Powered by LibreOffice for accurate rendering.
Extract text from scanned documents and images using Tesseract OCR. Make any PDF searchable and copy-friendly.
Add digital signatures, watermarks, stamps, and annotations. Fill and flatten PDF forms.
Your documents never leave your server. No third-party processing, no cloud uploads, no data collection.
No file size caps, no watermarks, no per-page charges. Process as many PDFs as you want, as large as you want.
Select Stirling PDF from the app marketplace, pick the Build plan, and click deploy.
InstaPods creates a real Linux server with Java, LibreOffice, and Tesseract OCR pre-installed. Takes about 30 seconds.
Open Stirling PDF in your browser via your pod URL. Upload a PDF and start merging, splitting, or converting.
Stirling PDF with full functionality - LibreOffice conversion and Tesseract OCR included.
Stirling PDF is one of many open-source apps you can deploy in seconds on InstaPods. Browse the full catalog.
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