PSPDFDigitalSignatureReferenceTransformMethod

Objective-C

enum PSPDFDigitalSignatureReferenceTransformMethod {}

Swift

@frozen enum TransformMethod : UInt

The different transform methods (see Section 8.7.1, “Transform Methods”). DocMDP — Used to detect modifications to a document relative to a signature field that is signed by the originator of a document; see “DocMDP” on page 731. UR — Used to detect modifications to a document that would invalidate a signature in a rights-enabled document; see “UR” on page 733. FieldMDP — Used to detect modifications to a list of form fields specified in TransformParams; see “FieldMDP” on page 736. Identity — Used when signing a single object, which is specified by the value of Data in the signature reference dictionary (see Table 8.103). This transform method supports signing of FDF files. See “Identity” on page 737 for details.