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.

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• Updated Nov 11, 2026
• C#

A soulful, production-grade PDF reader for Android featuring a "Warm Paper" aesthetic, gesture-driven interface, and a high-performance modular architecture. Built with Kotlin 2.0 and Jetpack Compose

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• Updated Nov 10, 2026
• Kotlin

Golang PDF library for creating and processing PDF files (pure go)

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• Updated Oct 20, 2026
• Go

Build and generate PDF using React 📄 UI kit for PDFs and print documents. Simple, reusable components and templates to create great invoices, docs, brochures. Use your favorite front-end framework React to build your next PDF.

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• Updated Sep 12, 2024
• TypeScript

Pympress is a simple yet powerful PDF reader designed for dual-screen presentations

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• Updated Mar 29, 2026
• Python

Book's Story — Material You eBook reader built with Jetpack Compose. Free & Open source & Ad-free, with extensive customization options and support for multiple file formats.

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• Updated Nov 5, 2026
• Kotlin

Rust / WASM library for reading, writing and rendering PDF

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• Updated Nov 11, 2026
• Rust

SumatraPDF fork: Chinese EPUB/MOBI, smart PDF dark mode, OCR, TTS, offline dictionary.

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• Updated Nov 11, 2026
• C

Lumina Note - A modern Markdown note-taking app with live preview, bidirectional links, and AI assistant

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• Updated Aug 13, 2026
• TypeScript

An open-source, Qt-based eBook reader for Kobos (and other devices).

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• Updated Aug 14, 2026
• C++

🚜 Parse text and tables from PDF files.

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• Updated Jan 21, 2026
• HTML

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.

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• Updated Nov 11, 2026
• TypeScript

Open-source Android PDF and document toolkit with PDF tools, Office viewing, XLSX editing, scanning, and image editing. Built with Kotlin and Jetpack Compose.

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• Updated Nov 12, 2026
• Rust

Folio — a simple, clean, open-source PDF reader and editor

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• Updated Nov 11, 2026
• TypeScript

NeoRead: a local-first EPUB/PDF reader with annotations, side-by-side translation, and AI assistance through Claude Code, Codex CLI, and Kimi CLI.

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• Updated Nov 12, 2026
• TypeScript

📄 PDF reader in JavaScript only for Expo - Android & iOS capable

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• Updated May 12, 2025
• TypeScript

A voice assistant 🗣️ which can be used to interact with your computer 💻 and controls your pc operations 🎛️

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• Updated Aug 31, 2023
• Python

📚 Simplifying the way you read. Minimalistic Vim-like TUI document reader.

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• Updated Oct 30, 2026
• Rust

An iOS PDF viewer and annotator written in Swift that can be embedded into any application.

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• Updated Dec 21, 2020
• Swift

#1 Angular PDF viewer

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• Updated Nov 12, 2026
• JavaScript