Make sure that you are using BouncyCastle 1.49. There was a problem
with 1.48 with some certificates.

Paulo

On Thu, Jul 4, 2013 at 5:40 PM, Stephan Wagner (calac)
<stephan.wag...@calac.net> wrote:
> Hi, first of all I'm not what one calls a digital signature expert but I'm
> wondering if somebody might have a solution for the problem I ran into.
>
> Problem description:
>
> If I try to verify a digitally signed PDF with iText (5.4.2) verify() always
> returns false (wrong result)
> If I try to verify the same PDF with iTextSharp (5.4.2) Verify() returns
> true (expected result)
> The digital signature is also valid in Acrobat Reader (Xi) (expected result)
>
> When I copy the file and tamper it, iTextSharp Verify() returns false
> (expected result), just to make sure it doesn't return true all the time.
>
> I already tried different versions back to 5.3.0, and wasn't able to get the
> PDF verified from Java.
>
> I tried to attach a sample file, but don't know if it worked...
>
> Thanks a lot
> Stephan
>
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