Hi,
I have a signed PDF document in append mode.
I want to add some text/image to a new revision with PdfStamper, however
everything I am trying to add makes the previous signature invalid except for a
new signature field.
Here is a code I use to add a new page (which makes the digital signature
invalid too).
RandomAccessFileOrArray raf = new RandomAccessFileOrArray(InputStream);
PdfReader reader = new PdfReader(raf, null);
PdfStamper stamper = new PdfStamper(reader, OutputStream, '\0', true);
stamper.InsertPage(0, new iTextSharp.text.Rectangle(0, 0, 100, 100));
// stamper.AddSignature("test", 1, 1, 1, 1, 1); - if I use this instead of the
previous line, then the signature remains valid.
stamper.Close();
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