Secure PDF annotator

Securely annotate PDFs in your browser.

Add text, marks and signatures to private PDFs locally, then export a clean edited copy from your device.

Add visible edits

Place text, marks and signatures on the page and adjust them before export.

Move and resize edits

Select annotations, reposition them and scale them until the page looks right.

Private workspace

Your documents and edits stay in this browser. Passwords are never saved.

Annotate private documents without uploading them.

Reviews, approvals, corrections and signing jobs often involve sensitive files.

Slay PDF keeps the annotation workspace in the browser so source documents do not need to pass through an upload service.

Secure PDF annotator FAQ

Can I annotate PDFs securely?

Yes. Open the PDF in Slay PDF, add page edits and export the finished document from the browser.

Can I move annotations after adding them?

Yes. Select edits on the page to reposition, resize or delete them.

Can I sign PDFs this way?

Yes. Use the local signing and edit tools to place a signature before exporting.