We are getting an error when we divide a encrypted pdf file into a each page then merge them as one pdf file.
var pdfDocAttach = new Aspose.Pdf.Document();
var pdfDocAttachTemp = new Aspose.Pdf.Document(pdfStreamAttach);
pdfDocAttach.Pages.Add(pdfDocAttachTemp.Pages[1]); -> Error Excception
errorMessage :
Invalid signature object.
StackTrace :
at
.[1]([1] [1])
at Aspose.Pdf.Forms.SignatureField…ctor(
[1], Document
)
at Aspose.Pdf.Forms.Field.[1](
[1], Document
)
at Aspose.Pdf.PageCollection.[1](Page [1])
at Aspose.Pdf.PageCollection.[1](Page [1],
)
at Aspose.Pdf.PageCollection.Add(Page entity)
Help!