Tools

Verify an electronic signature

Upload a signature file — we will check the cryptography, the certificate chain, revocation status (OCSP/CRL), and the timestamp, and show you the signer and whether it is a QES (a certificate from an accredited provider). No key required.

Files to verify

Choose file(s) — you can add both the signature and the original…

Your files never leave your browser

Choose one or two files — the system will figure out which one is the signature and which is the data. For a detached signature, add both files (e.g. document.pdf and document.pdf.p7s); for an attached signature or PDF/ASiC/XAdES, a single file is enough.

Need to sign a file? Sign a file →