PdfFileSignature

Aspose.PDF Product Family
1

Hi Aspose team,


We got following error message" NullReferenceException: Object reference not set to an instance of an object." when using following method ContainsUsageRights() and file contains only Signatures without Extended Usage Righs.
Code example is following:

using (Facades.PdfFileSignature pdfSign = new Facades.PdfFileSignature())
{
pdfSign.BindPdf(vResultedStream);
if ((pdfSign.ContainsUsageRights()))
{
pdfSign.RemoveUsageRights();
}
pdfSign.Document.Save(vNoSignatureStream);
}

We are using Aspose.Pdf version 11.2
2

Hi Dmitrij,


Thanks for contacting support.

Please share the resource file, so that we can test the scenario in our environment. We are sorry for this inconvenience.