Verify a notarized document

Upload a sealed PDF to check its digital signature, tamper evidence, and whether the sealing notary is registered on this platform. No account required.

Upload a sealed PDF

The file is checked in place — nothing is stored.

Any PDF is accepted; an unsealed file simply reports no signature.

What is checked. The PDF signature structure (PAdES), whether the byte range still matches the signed digest, certificate validity and trust, presence of a timestamp, whether the signing certificate maps to a notary commissioned on this platform, and whether the document's hash has been anchored to a public blockchain (verifiable independently of this platform).