PDF Signature Verification

ADSS Signing Server
You can verify any signed PDF document in this demo. For this demo ADSS Server has been configured with a list of Certificate Authorities (CAs) as final trust anchors. Your signature will be reported as trusted only if your document was signed using a certificate which chains to one of these CAs. ADSS Server can support an unlimited number of CAs as trust anchors, each CA can have its validation policy rules.
Server-side verification uses a flexible OASIS DSS API that can define how ADSS Server should verify the signature and what evidence information should be returned, e.g. CRL/OCSP revocation information, certificate path information, etc.

All verification service responses are signed by the ADSS Verification Server so that clients can see that these are genuine messages from a trusted authority and they have not been changed.

The ADSS Verification Server not only ensures that the document has not been changed since signing and that the signer’s credentials are valid (not expired, not revoked and issued by a trusted CA) but can also report on the quality level of the signature and the associated certificate quality level – see this information on PEPPOL.

If you are uploading a document we restrict the file size to 1 MB and documents having 50 pages or less – just for this demo.