Sign PDF online

Sign PDF online without uploading.

Use Slay PDF for quick approval marks, typed notes and visual signatures when an online signing tool should not receive the source file.

Add signatures

Place a visual signature on the PDF page and adjust its position before export.

Add notes

Use text, highlights, shapes and ink marks for quick review or approval edits.

Keep it local

Download the signed PDF from the browser. Passwords are never saved.

Simple signing for everyday PDFs.

Slay PDF is not a certificate authority or enterprise e-signature workflow. It is for common visual signing jobs: approvals, forms, initials, notes and quick document markups.

Because the app runs locally, it is a practical option for documents where uploading to a random signing site is unnecessary.

Sign PDF online FAQ

Can I sign a PDF online for free?

Yes. Slay PDF lets you place visual signatures and marks in the browser without an account flow.

Is this a legal digital certificate signature?

No. Slay PDF adds visual signatures and marks; it does not issue certificate-backed digital signatures.

Are signed PDFs uploaded first?

No. The signing workflow runs locally in this browser.