#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere
The Privacy First PDF Toolkit
PdfCraft: An open-source PDF reader and editor written by scratch in pure Rust
A PDF viewer that seamlessly integrates with any JavaScript project
Privacy-first PDF utility (Zero-Server Architecture). Merge, split, compress, and edit PDFs 100% locally on your device. No uploads, no servers, no tracking.
A free-floating 2D Canvas for processing multiple PDF files simultaneously
Free open-source web software for signing PDF (alone or with others) and also organize pages, edit metadata and compress pdf
152 free browser-based tools in 17 languages. Your files and text are processed in your browser — no uploads, no accounts, no ads. Image & on-device AI tools, PDF, converters, formatters, calculators, generators. Some AI tools download model weights on first use.
Open-source Android PDF and document toolkit with PDF tools, Office viewing, XLSX editing, scanning, and image editing. Built with Kotlin and Jetpack Compose.
64-bit Emacs for Windows with ImageMagick 7
Create, read, and modify PDFs in JavaScript. One C++ PDFWriter core shipped twice: a native Node.js/Electron addon with prebuilt binaries (@muhammara/native) and a browser-safe, byte-first WebAssembly package (@muhammara/wasm). Successor to HummusJS.
TeamSync PDF Viewer
Pure TypeScript, cross-platform module for extracting text, images, and tabular data from PDFs. Run 🤗 directly in your browser or in Node.js
Fast, open-source PDF text extraction API. Files never stored.
Fill, sign, merge, split, and extract PDFs from Claude Desktop and other MCP hosts. Maintained by the Open Document Alliance.
Edit, convert, and transform documents across PDFs, Office formats, HTML, TXT, CSV, RTF, JSON, and images with ComPDF Self-hosted, an open-source PDF platform.
Forensic auditing utility to expose and unmask failed visual-only PDF redactions by Taylor Wessing LLP. Designed to extract hidden text layers offline and verify GDPR compliance following the Valve Corporation data leak.
Python CLI to replace visible PDF text with font-aware fallback and cleaner word spacing.
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