Certify a PDF
Flattens the signed document and issues a certificate recording its SHA-256 fingerprint.
Sign & certify flattens the document you signed and issues a certificate recording its SHA-256 fingerprint, so anyone can check later whether the file changed. It does not send the document anywhere, does not verify who signed, does not establish a trusted time, and is not a cryptographic digital signature.
Works offline. Once this page has loaded, the tool never contacts the network again.
Nothing leaves your device — the document is processed locally in this browser.
Typed into the workspace command bar, any of these opens this tool. They are the assistant's own routing examples, not a rewrite of them.
Also called: sign and certify · signing certificate · certificate of signing · signing record · send for signature · e-sign · esign