Look at the example
http://itextpdf.sourceforge.net/howtosign.html#signextdic. You need to
have the correct filter and subfilter depending on your PKCS#7.
Paulo
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Christoph Weber
> Sent: Monday, September 04, 2006 3:54 PM
> To: [email protected]
> Subject: [iText-questions] insert PKCS#7 Signature into pdf
>
> Hi All!
>
> What I want to do is adding a PKCS#7 signature to a pdf
> document. This
> signature is generated by a PKCS#11 Library, so I can work with an
> external card reader. It is not possible to get the private
> key/certificate out of the card.
>
> What I understood from now I have to
>
> 1. open a pdf document in itext
> 2. calculate a hash from this file
> 3. Generate a PKCS#7 signature with the PKCS#11 Library
> 4. Add this signature to the pdf
>
> I already read the tutorial about adding external signatures under
> "http://itextpdf.sourceforge.net/howtosign.html";, but that
> doesn't help.
> They always work with keys and certs which I can't access.
>
> So please help me. Java Code would be the best, except for point 3 of
> course.
>
> Thanx in advance,
> Chris
>
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