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PDF files are an ISO standard (including the digital signing part), so that should be fine.
by icebraining 6y ago
PDF files are an ISO standard (including the digital signing part), so that should be fine.
- sn41 6y agoBut who authenticates the digital signatures? I am under the impression that these are certified by Adobe.
- TillE 6y agoPDF signing should be pretty standard PKI stuff. If you have Adobe's public certs you're good.
- PeterisP 6y agoIn general, digital signatures should always be cryptographically verifiable by the receiver without anyone's cooperation - certification by someone may be required to make the signature (especially if you'd want the signature to include a trusted timestamp), but everyone else in perpetuity can verify if a signature was certified by someone even if that certifier does not exist anymore.