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PDF Annotator

Highlight, comment and draw on any PDF

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This tool is configured with sensible defaults — just upload your file and click Process.

🔒 100% browser-side · no upload

Why use Annotate?

Mark up any PDF with highlights, comments, shapes and free drawing. Perfect for reviewing contracts and giving feedback.

What's inside

  • Text highlighting
  • Comments & sticky notes
  • Free drawing pen
  • Shapes (rectangle, ellipse, arrow)
  • Collaborative-ready UI
  • Color presets

Annotate — frequently asked

Quick answers about annotate.

Yes. PDF Annotator is 100% free, with no watermarks or daily limits. All processing happens in your browser, so there's no upload to our servers.