Verify the digital signature of a P7M file
Drop the .p7m file on the home page: in seconds you see who signed it, with which certificate, whether the certificate was valid at signing time and whether the document is intact. The check is free, needs no account and runs in your browser.
What we check
- Signer: the name and Italian tax code in the certificate.
- Certificate: the issuing authority and the validity period.
- Signing time, with confirmation that the certificate was valid at that moment.
- Integrity: confirmation that the content is exactly what was signed.
- Signature: the match between the signature and the signer’s certificate.
Several signatures on one document
.p7m.p7m files carry several signatures, one over the other: we show them all, in the order they were added.
Legally binding verification
For a report to attach to a formal procedure, complete the check with one of the programs listed by AgID, the Italian digital agency: our summary already tells you who signed and that the document is intact.