Gamma PDF
Self-hosted PDF reader for research papers with annotations, Markdown and LaTeX notes, and cited AI answers about the paper.
- AI tool
- Free
Pricing
Desktop app and self-hosted server are free; open source under AGPL-3.0. AI answers use your own Anthropic or OpenAI key or a paid ChatGPT plan. A hosted cloud plan is announced as coming soon.
Overview
Gamma PDF is an open-source reader and annotator for research papers that runs on your own machine or server. Every highlight, drawing or typed mark becomes a note, and an outliner beside the paper takes Markdown and live LaTeX math. You can ask questions about a paper and get answers that cite and jump to the passage, using your own Anthropic or OpenAI key or a paid ChatGPT plan. It fills in titles, authors and BibTeX, imports from Zotero, Obsidian, Logseq and Notion, and lets Codex, Claude Code or other MCP clients read your papers and notes for one workspace you approve. It runs on Windows, macOS, Linux, iPad and Android, or as one Docker image for a whole lab. You get an annotated paper library with notes and sourced answers you can search.
Key features
- Highlights and drawings become notes
- Outliner with Markdown and live LaTeX
- Cited AI answers about a paper
- Zotero, Obsidian, Logseq and Notion import
- Read-only access for Codex, Claude Code and MCP clients
- Desktop, mobile and Docker
- Open source under AGPL-3.0
Use cases
Show all 9Show fewer
Alternatives
Last updated 2026-11-14