Sign PDF
Add signatures, text, drawings, lines, and highlights anywhere on your document, then download. Signatures and drawings are visual marks — not cryptographic digital signatures.
Applying changes…
Free account required
Sign PDF is free with an account — no card required. Create one and you'll land right back here.
Frequently asked questions
Is this a legally binding signature?
This tool adds a visual mark to your PDF — it is not a cryptographic digital signature. For legally binding e-signatures, you need a dedicated e-signature service.
Can I sign multiple pages?
Currently the signature is applied to one page. Run the tool again on the output file to sign additional pages.
Can I resize the signature?
Yes — use the size slider in the editor to adjust the signature before applying.
Are my documents stored anywhere?
Never. Files are processed entirely in server memory and permanently discarded the moment your download completes.