Hi
I'm trying to sign a PDF/A file. I followed the samples of iText and when I
do:
Dim objStamper As PdfAStamper =
PdfAStamper.CreateSignature(objReader, FileStream(Target, FileMode.Create),
ControlChars.NullChar, Nothing, Multi, PdfAConformanceLevel.PDF_A_1B)
I get the following error:
Invalid CastException
An object of the type 'iTextSharp.text.pdf.intern.PdfXConformanceImp'
cannot be converted to the type
'iTextSharp.text.pdf.interfaces.IPdfAConformance'.
I'm using the latest iTextsharp version (5.3.5) and I have referenced
iTextsharp.dll and iTextsharp.pdfa.dll
Thanks in advance
mpino
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