# Free Online Tools | Revdoku

> Free browser-based tools from Revdoku. Annotate PDFs online, download the modified file, or share it—all privately without uploading your PDF to a server.

Tools

Simple file tools that work entirely in your browser. No uploads and no account required to get started.

PDF

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Free · private · browser-based
Free PDF Annotator

A free PDF annotator that works online. Add annotations, highlights, and text, then download the modified PDF or share it online. Everything works privately in your browser—your file is never uploaded to a server.

Add annotations & highlights

Insert text

Download or share online

Annotate a PDF →

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