Readest is a modern, feature-rich ebook reader designed for avid readers offering seamless cross-platform access, powerful tools, and an intuitive interface to elevate your reading experience.

An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices

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

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

The Privacy First PDF Toolkit

🖼️ Image Toolbox is a powerful app for advanced image manipulation. It offers dozens of features, from basic tools like crop and draw to filters, OCR, and a wide range of image processing options

PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.

Sketch and take handwritten notes.

OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched

A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS and Web

Python tool for converting files and office documents to Markdown.

Get your documents ready for gen AI

Transforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows.

🪐 Markdown with superpowers: from ideas to papers, presentations, websites, books, and knowledge bases.

Convert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding.

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.