Bug fixed: If we have a binary signature, the certificate is embedded. So there should be no serial number needed within the signature block. PDF-AS stores the certificate in the certstore but tries to load the certificate via serialnumber and issuername from certstore, which fails because of the missing serial number. Bug fixed: For storage of the certificate in the certstore the issuername is taken from the certificate, normalized and hashed. The base64 value of the hash is used as the directory name. Loading the certificate from the certstore, the issuername is taken from the signature block, normalized and hashed. Some issuernames (with rdns that are not registered) lead to two different hash values (one at storage, another at retrieval), which leads to a certificate not found exception. PDF-AS library version is logged in order to lighten bugfixing.