Description

Specifies a DigitalSignature object, which defines an X.509 certificate. This certificate can be used to digitally sign a PDF or a PDF/A file. For other formats this property has no meaning.

Syntax

public DigitalSignature DigitalSignature { get; set; }

Public Property DigitalSignature As DigitalSignature

Examples

The following example signs the complete PDF with an X.509 certificate supplied by the application's secure certificate-loading code.

textControl.Text = "Approved quarterly report";
SaveSettings saveSettings = new()
{
    DigitalSignature = new DigitalSignature(certificate, null)
};
textControl.Save("approved-report.pdf", StreamType.AdobePDF, saveSettings);

textControl.Text = "Approved quarterly report"
Dim saveSettings As New SaveSettings() With {
    .DigitalSignature = New DigitalSignature(certificate, Nothing)
}
textControl.Save("approved-report.pdf", StreamType.AdobePDF, saveSettings)