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Creating a pdf using aspose occur error the existing digital signature

I created pdf again with digital signature using aspose. But when I open the pdf file again, the digital signature is breaked.

when I create from filestream to pdf using aspose, use this source in c#.

Aspose.Pdf.Document pdfDocTemp = new Aspose.Pdf.Document(fileStream);

Aspose.Pdf.Document pdfDoc = new Aspose.Pdf.Document();

int tempPagecnt = pdfDocTemp.Pages.Count;
for (int tempPageCount = 1; tempPageCount <= tempPagecnt; tempPageCount++)
{
pdfDoc.Pages.Add(pdfDocTemp.Pages[tempPageCount]);
}

var pdfStreamNew = new MemoryStream();
pdfDoc.Save(pdfStreamNew);

cf) pdf file info

before : esign0.pdf (67.6 KB)

after : DigitalSignature_uploaded.pdf (68.2 KB)

@koreaus1

We have managed to reproduce the same issue at our side. For the sake of correction, we have logged this problem in our issue tracking system as PDFNET-51756. You will be notified via this forum thread once this issue is resolved.

We apologize for your inconvenience.

When can I expect issue to be resolved?
Can I verify here?

@koreaus1

Currently, your issue is pending for analysis and is in the queue. Once we complete the analysis of your issue, we will then be able to provide you an estimate.

Okay, Thank you