THPDFSignatureTimeValidity Type

Compares the evaluation time against the signer certificate validity window

Declaration

THPDFSignatureTimeValidity= (
  stvUnknown,
  stvValid,
  stvNotYetValid,
  stvExpired,
  stvInvalidRange,
  stvSigningTimeOutsideCertificate
  );

HPDFSignVerify

Value	Purpose
`stvUnknown`	The certificate carries no usable `notBefore`/`notAfter` pair, so no time comparison is possible
`stvValid`	The evaluation time lies inside the certificate validity window
`stvNotYetValid`	The evaluation time is earlier than the certificate's `notBefore`
`stvExpired`	The evaluation time is later than the certificate's `notAfter`
`stvInvalidRange`	The certificate's `notBefore` is later than its `notAfter`, so the window itself is broken
`stvSigningTimeOutsideCertificate`	The embedded signing time falls outside the certificate validity window even though the evaluation time is fine

Certificate validity is reported separately from the cryptographic signature status so existing svValid callers keep their meaning
stvUnknown means the certificate exposes no validity dates, not that the check was skipped
Passing zero as the evaluation time makes the check use the current time