SetSignProcessDocMDP
Security and signatures
Description
This page describes DocMDP in PDF Library for Delphi under the "Security and signatures" topic. API names, parameters, class names, filenames, and literals are kept exactly as they appear in the Delphi library and DLL entry points.
The generated signature dictionary receives a /Reference entry with the requested permission level, and the document catalog receives a matching /Perms /DocMDP reference to that signature dictionary
Syntax
Delphi
Function TPDFlib.SetSignProcessDocMDP(SignProcessID, Level: Integer): Integer;Parameters
| SignProcessID | Value returned by one of the NewSignProcessFrom* functions |
|---|---|
| Level | 0 disables certification, 1 permits no changes, 2 permits form filling and signing, and 3 additionally permits annotations |
Returns
| 0 | The process identifier or level is invalid |
|---|---|
| 1 | The requested level was stored on the signing process |
Certification constraint
A certifying signature must be the document's first signed signature and the catalog must not already contain a DocMDP permission reference
See the PDF Library for Delphi Developer Guide and header comments for detailed parameter descriptions.
Return Values
TPDFlibSignatureVerifier.GetSignaturePermissionInfo* reports the permission level, structural validity, and whether the catalog reference matches the selected signature