Hello everybody!
I am trying to use iTextSharp to sign digitally a PDF previously created.
I've upgraded my iTextSharp.dll version to 5.3.3.0 (I was previously using
an elder version just for creating the PDFs), I have found the White Paper
about Digital Signatures written by Mr. Lowagie and, of course, I've tried
to apply what I've read there (written in Java) to what Im doing in VB.NET.
But I'm doing something wrong, or I'm missing something, because the
classes and their methods doesn't seem to be the same, and I'm not being
able to find them in my downloaded dll.
For example, the PdfStamper Class doesn't have a getSignatureAppearance()
method, but I found the SignatureAppearance() one, which I think it does
the same, so no problem. The PdfSignatureAppearance doesn't have the
setReason or setLocation mtehods, but this is not my main problem.
My first problem is when I try to get and ExternalDigest. In fact, I can't
find neither the ExternalDigest class nor an equivalence in my dll version.
And, if I can solve that, the signDetached method signature is not the same
in Java than in VB.NET.
After all this context (sorry if it's lengthly), my question is: can I use
the concepts in the White Paper about Digital Signatures with iTextSharp
version 5.3.3.0, or I have to downgrade my dll to try a previous approach
to digitally sign my pdfs? If i can use the same concepts, where can I find
the ExternaDigest class?
Thanks a lot!
------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_sfd2d_oct
_______________________________________________
iText-questions mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
