THPDFSignatureTimeValidity Type

Compares the evaluation time with the validity window of the signer certificate

Declaration

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

HPDFSignVerify

Value	Purpose
`stvUnknown`	The certificate carries no usable `notBefore`/`notAfter` pair, so no time comparison can be made
`stvValid`	The evaluation time lies within the certificate validity window
`stvNotYetValid`	The evaluation time falls before the certificate's `notBefore`
`stvExpired`	The evaluation time falls after the certificate's `notAfter`
`stvInvalidRange`	The certificate's `notBefore` comes after its `notAfter`, so the window itself is broken
`stvSigningTimeOutsideCertificate`	The embedded signing time falls outside the certificate validity window even though the evaluation time itself is fine

Certificate validity is reported separately from the cryptographic signature status, so existing svValid callers keep the meaning they already have
stvUnknown means the certificate exposes no validity dates, not that the check was skipped over
Pass zero as the evaluation time and the check falls back to the current time