Annotate

Annotate online

Sticky notes, comments and threaded replies.

Drop your file in the tool below or choose it from your device to start.

No sign-up No watermark Runs in your browserFree for personal use1 file | up to 200 MB
Your file is processed on your device in this browser session. PDF me does not upload it to a processing server. Uses a local browser worker or WebAssembly module, still inside your browser.
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No sign-up No watermark Runs in your browser Free for personal use
01
Upload
Drop in one or many files.
02
Annotate
Sticky notes, comments and threaded replies.
03
Download
Save back to your device, Drive or Dropbox.
Related Tools
Edit PDFSign PDFHighlightWatermark
Online PDF workflow

Annotate PDFs with sticky notes and comments — review without printing.

Add sticky notes, comments and threaded replies to PDF pages. Annotate documents for review, collaboration or personal reference. Free, no account. No account, no watermark, runs in your browser.

Add sticky notes and comments to review documents collaboratively.

Thread replies on individual annotations to keep feedback organized.

Export the annotated PDF with all notes visible and selectable.

Is Annotate free to use?

Yes. Annotate is free for personal use, does not require an account and does not add a watermark to your exported PDF.

Are my files safe in Annotate?

Current live tools process files in the browser. Some tools use local browser workers or WebAssembly modules, but the document still stays on your device.

Can I use Annotate on mobile?

Yes. The tool works in modern mobile and desktop browsers, so you can upload, adjust and download PDFs without installing a desktop app.