Op 10/09/2012 1:29, Alvaro Cuno schreef:
> Everything is ok and all digital signatures are valid, however I don't 
> understand why the internal structures of the signed documents (see 
> attached files) are different?
1. You're not using the most recent version of iText; the type of 
signature you're using will be deprecated in PDF 2.0. ISO-32000-2 
recommends: “To support backward compatibility, PDF readers should 
process this value for the /SubFilter key but PDF writers shall not use 
this value for that key.” Please upgrade to the latest iText version and 
use a different type of signature.
2. The only thing you need to know, is this: you're using bad software 
if you're able to produce two binary identical PDF files by running the 
same program twice. Object numbers shouldn't matter.

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