Salvo,

Salvo Rapisarda wrote:
> 
> I have found the problem!!! :-) ...but not the solution.... :-(
> 
> Ok ok...it's true that I use two kind and version of iText PDF Library
> (iTextSharp and iText for Java).
> And this is the problem! I have done a compare of files pre-generated with
> iTextSharp and iText for java: there are different!
> 

You have not fully understood the problem... if you had compared a file
prepared by iTextSharp with another one for the same PDF also prepared by
iTextSharp, you would have seen that they, too, are different.

As has been mentioned fairly often in this thread (and quite a lot of other
threads here, too), preparing a document for signing is non-reproducible as
there are some implicite data also included in the prepared document.

So you either have to somehow keep that prepared original document (or at
least in append mode the appended part) or you have to patch iText to
include the identical implicite data each time you prepare the same document
for signing.

Regards,   Michael.
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