Choose and preview
Add a PDF and open a page.
Annotate PDF privately.
Annotate PDF by PrivatePDF lets you annotate pages visually with text, highlights, rectangles, and freehand ink, with undo and flattened export entirely in your web browser. Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded. There is no account, no watermark, and no file-size limit imposed by the platform.
- 01Add a PDF and open a page.
- 02Choose text, highlight, shape, or ink and place it visually.
- 03Drag elements into position, review, and export.
Files never leave this browserPrivate workspace
Drop one pdf file hereWe'll build private previews on this device
Built for this exact task
How to use Annotate PDF
Add text, highlights, rectangles, and freehand ink on a large page preview, then drag elements into place.
Make your changes
Choose text, highlight, shape, or ink and place it visually.
Verify and download
Drag elements into position, review, and export.
- Large editing canvas
- Text, highlight, shape, and ink tools
- Drag, remove, and undo
- Processing happens entirely in your browser
Key takeaways
- Processing happens entirely in your browser — files are never uploaded to PrivatePDF servers.
- No account or signup required to use any tool.
- No watermarks are added to the output.
- No platform-imposed file-size limit (practical limit is your device memory).
- Large editing canvas
- Text, highlight, shape, and ink tools
- Drag, remove, and undo
Questions about Annotate PDF
Useful answers before you start.
Can I move an annotation after placing it?
Yes. Drag the element directly on the page preview.
Can I edit original PDF text?
This tool adds and flattens new annotations; it does not rewrite existing text objects.
Are my files uploaded to your servers?
Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded.
Is PrivatePDF free to use?
Yes. PrivatePDF is completely free. There is no account, no watermark, and no artificial daily limit.
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