PdfCertificateRevocationThe revocation status of one certificate of a certificate path, and where it comes from: the signature (a CMS crls field or the adbe-revocationInfoArchival attribute), the document security store, the data the caller gave, or a fetch through the client the caller opted in with.
PdfCertificateSignerThe managed default signer: signs with the private key of a certificate through the platform's cryptography, RSA (PKCS #1 v1.5 or RSASSA-PSS) or ECDSA on P-256, P-384 or P-521.
PdfFieldLockOptionsThe form fields a signature locks: once it is signed, a change to their values invalidates it. Written as the signature field's lock dictionary and copied into the signature's FieldMDP transform parameters.
PdfModificationOne change an incremental update after a signature made, and whether that signature permits it.
PdfSignatureAppearanceWhat a visible signature shows and where: the page and rectangle of its widget, the text (by default the signer's name, the date, the reason and the location) and an optional image, such as a scanned handwritten signature.
PdfSignatureOptionsOptions for one signature: the field it goes into, the signature properties it records, the sub-filter and the digest algorithm.
PdfSignatureProblemOne reason a signature is not valid, with what was found.
PdfSignatureValidationThe validation of one signature of a document: its status, the reasons for it, and what was read on the way (the byte range, the digest algorithm, the signer certificate and the certificate path that was built).
PdfSignatureValidationOptionsWhat signature validation trusts and uses: the certificates a signer's chain must reach, other certificates that may complete a chain, the time at which certificates must be valid, revocation data, and whether revocation data may be fetched.
PdfTimestampExceptionThe exception thrown when a time-stamp authority does not issue a usable token: the HTTP request fails, the authority answers with a failure status, or the token it returns does not match the request (another message imprint, nonce or policy).
PdfTimestampValidationThe validation of an RFC 3161 time-stamp token: its signature, its message imprint, the time-stamping unit's signing-certificate attribute, extended key usage and certificate path (checked, with its revocation, at the time validation runs), and the time it asserts.
Interfaces (1)
IPdfSignerProduces the signature value of a document signature from a digest: the extension point signing goes through, so that the private key can stay in a hardware security module, a smart card or a remote signing service.
Enums (7)
PdfCertificationPermissionsThe changes a certification signature permits after it (the P entry of the DocMDP transform parameters), or a signature field lock permits after its signature (the lock's P, PDF 2.0).
PdfModificationKindWhat an incremental update after a signature changed, as modification detection classifies it.