Sign Method
Signs a PDF document.
Syntax
int Sign();
Remarks
Call this method to sign the document referenced by InputFile (or InputStream) property. The document will be signed with SigningCertificate as configured in Signature, and saved in OutputFile (OutputStream).
Use TrustedCertificates, KnownCertificates, RevocationCheck, OfflineMode and other properties of class to adjust chain validation parameters. After the signing, the chain validation log will be available in ValidationLog property.
Error Handling
This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)