Open source pdf projects
Every project in the registry tagged pdf, ranked by real GitHub adoption.
Effortlessly organize your digital documents
Univer is a full-stack framework for creating and editing spreadsheets / word processor / presentation on both web and server.
An open-source, clean-room reimplementation of Adobe Acrobat built in pure Rust
Legally binding document signing for individuals and teams
The Privacy First PDF Toolkit
Secure, open-source document signing for everyone
PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.
Open-source document sharing with powerful analytics
PDF tooling for Go and the command line.
Open-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms on Windows, Linux,
A Canvas/SVG-based rich text editor
💀 Generate malicious PDF test files for testing phone-home callbacks, SSRF, XSS, NTLM credential theft, and data exfiltration in PDF viewers, converters, and w
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, fil
Free Open Source Reporting tool for .NET6/.NET Core/.NET Framework that helps your application generate document-like reports
Document scanning app
Translate full-length books and documents with Ollama, OpenAI-compatible, Gemini, Mistral, DeepSeek, Poe or OpenRouter. Preserves formatting. Resumes where you
An Open source app to download and read books from shadow library (Anna’s Archive)
Assist in organizing your piles of documents, resulting from scanners, e-mails and other sources with miminal effort.
Hackable CLI tool for converting Markdown files to PDF using Node.js and headless Chrome.
A CLI text-to-speech tool using the Kokoro model, supporting multiple languages, voices (with blending), and various input formats including EPUB books and PDF
The headless Chrome/Chromium driver on top of Puppeteer. Take screenshots, generate PDFs, extract text and HTML with a production-ready API.
The SILE Typesetter — Simon’s Improved Layout Engine
A lightning fast image processing and resizing library for Go
Database Reporting Tool and Tasks (.Net)
Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This i
Privacy-first PDF utility (Zero-Server Architecture). Merge, split, compress, and edit PDFs 100% locally on your device. No uploads, no servers, no tracking.
PDF4QT is an open-source PDF toolkit for Windows and Linux, combining powerful desktop applications, command-line tools and a modern MIT-licensed C++/Qt PDF eng
JasperReports® - Free Java Reporting Library
(eBook，PDFs Translation) A multilingual eBook processing tool supporting all eBook formats. Features online and offline translation while preserving original la
javascript based business reporting platform :rocket:
The fastest PDF library for Python and Rust. Text extraction, image extraction, markdown conversion, PDF creation & editing. 0.8ms mean, 5× faster than industry
A free-floating 2D Canvas for processing multiple PDF files simultaneously
Unified research workspace for humans & agents — PDF Q&A with citations, Vault, writing. 为人与 Agent 协作的科研工作台；补齐 Zotero 时代的人机上下文断点。
An Android app to scan your documents — simple and respectful
Booktype is a free, open source platform that produces beautiful, engaging books formatted for print, Amazon, iBooks and almost any ereader within minutes.
Free open-source web software for signing PDF (alone or with others) and also organize pages, edit metadata and compress pdf
Invoicerr is a freelance-focused invoicing app that lets you create quotes, generate invoices, track payments, and collect secure signatures.
Privacy-first, offline PDF editor for Android. Merge, split, compress, convert and annotate PDFs — 100% on-device, no internet required.
This layout engine can solve the hardest layout problems imaginable. Its output is DTP grade and deterministic. It's faster than engines written in C++ because
Free, open-source AI Office suite (Word, Excel, PowerPoint, PDF, Markdown) — macOS build, one-click install
A toolkit for ebooks, audiobooks and comics written in Swift
An open-source read-along document reader server with high-quality TTS options, synchronized highlighting, and audiobook export for EPUB, PDF, DOCX, TXT, and MD
Papermerge OSS
Related tags
Frequently asked questions
How many open source pdf projects are there?
This registry tracks 43 projects tagged pdf, with 232,481 GitHub stars between them. The most-adopted is Paperless-ngx at 47,544 stars.
Are these pdf projects free to use?
Yes — 42 of the 43 carry an explicit open-source licence across 7 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which pdf project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these pdf projects still maintained?
40 of the 43 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.