Stirling PDF

• Source: https://github.com/Stirling-Tools/Stirling-PDF
• License: MIT
• Status: RIP — only needed to add text fields, which is doable with OnlyOffice
• Alternatives: Adobe, OnlyOffice

Features

• PDF Manipulation: Merge, split, rotate, reorder, and compress PDFs
• OCR: Extract text from scanned documents via Tesseract
• Annotations & Forms: Add text, signatures, and fillable form fields
• Conversion: Convert PDFs to/from Word, images, HTML, and other formats
• Watermarking & Stamping: Add headers, footers, page numbers, and watermarks
• Fully Local: No files sent externally; everything processed on your machine