# Annotate PDF Online (PDF Annotator) | Revdoku

> Free private PDF annotator that works in your browser. Add, remove, and rearrange pages; insert PDF or image pages; annotate, move markups, and download or share the finished PDF.

Annotate PDF Online (PDF Annotator)

free & private (pdf and images are processed only inside your browser)

Publish the edited PDF with your AI

Download the edited PDF, then copy the prompt below.

Publish, share & get feedback

Free and instantly from your AI

Install skill
Copy prompt
Connect MCP

Best for Claude Code, Codex, and other skill-compatible developer agents.

npx skills add revdoku/revdoku --skill revdoku -g

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Paste one prompt into an AI app and let it choose the best available setup path.

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Review prompt

Choose your client, run the commands, then finish OAuth in your browser.

Codex CLI
Claude Code
Other

codex mcp add revdoku --url https://app.revdoku.com/mcp
codex mcp login revdoku

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claude mcp add --transport http revdoku https://app.revdoku.com/mcp
claude mcp login revdoku

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Transport Streamable HTTP
Auth Browser OAuth

https://app.revdoku.com/mcp

Copy URL

Open the MCP setup guide →

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[View the canonical page](https://revdoku.com/annotate-pdf/) · [Browse llms.txt](https://revdoku.com/llms.txt)