Sign Method
Signs a PDF document.
Syntax
pdfsigner.sign([callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
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.