Top PDF GitHub Repositories & Tools (2026)

Python tool for converting files and office documents to Markdown.

Get your documents ready for gen AI

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

A community-supported supercharged document management system: scan, index and archive all your documents

Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without a subscription.

Cross-platform desktop GUI app to clean image metadata

KCC (a.k.a. Kindle Comic Converter) is a comic and manga converter for ebook readers.

Fast Rust library for PDF inspection, classification, and text extraction. Intelligently detects scanned vs text-based PDFs to enable smart routing decisions.

The Open Source DocuSign Alternative.

Polyglot document intelligence with a Rust core: extract text, metadata, images, tables, and structured data from 106 formats across 140 file extensions, plus code intelligence for 371 languages. Fifteen bindings, with CLI, REST API, and MCP server.

qpdf: A content-preserving PDF document transformer

A self-hosted library for your ebooks, comics, and audiobooks

Render OG images and paged PDFs from JSX, HTML, and CSS. No headless browser. Runs on Node.js, Cloudflare Workers, browsers, and Rust.

A Python library for reading and writing PDF, powered by QPDF

The headless Chrome/Chromium driver on top of Puppeteer. Take screenshots, generate PDFs, extract text and HTML with a production-ready API.

Database Reporting Tool and Tasks (.Net)

A multi-platform document and e-book reader.

Any file → clean Markdown for AI agents: PDF, Word, PowerPoint, Excel, EPUB, HTML and web pages, images (OCR), audio and video (metadata, subtitles, transcripts). A fast Rust MCP server and CLI that runs on your machine. No API key.

pyHanko: sign and stamp PDF files

MIT-licensed, COM-free .NET libraries for creating, reading, editing, converting, rendering, and extracting Office, PDF, email, OneNote, and text formats.