2.0 http://www.w3.org/2.05/Atom Groupdocs API References – CertificateFilePath https://reference.groupdocs.com/signature/net/groupdocs.signature.options/digitalsignoptions/certificatefilepath/ Rece......2.0 http://www.w3.org/2005/Atom Groupdocs API References – CertificateFilePath...