PDF Converter GitHub Repositories (2026) · Open Source Tools

Get your documents ready for gen AI

Free, open-source file converter. Convert 263 formats offline by drag & drop — images, PDF, Word, Excel, PowerPoint, HWP/HWPX, video, audio, e-books and archives. No upload, no Office needed.

The Privacy First PDF Toolkit

PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.

A developer-friendly API for converting many document formats into PDF files, and more!

📄 Convert HTML/CSS to PDF or images instantly

PDF craft can convert PDF files into various other formats. This project will focus on processing PDF files of scanned books.

Extract text from a pdf

PDF Rendering and Viewing API in Java

Free, ad-free Android PDF toolkit: turn photos, Word, PowerPoint and EPUB into PDFs; merge, split, reorganize, rotate, edit, sign, watermark, number, compress, flatten and redact PDFs. Works offline, no tracking, no account, no uploads. OCR in English, French, Spanish and Hindi.

Converts email files (eml, msg) to pdf

A self-hosted, resource aware file conversion server supporting 490+ formats in 26 languages.