Thanks for your answer.

If someone has already done that with itext, let me know !

Le lun 18/10/2004 � 13:41, Leonard Rosenthol a �crit :
> At 04:14 AM 10/18/2004, Guillaume All�e wrote:
> >I have 2 pdf files:
> >         - certified.pdf (which has been certified using adobe professional)
> >         - itext_signed.pdf (which has been signed using your itext)
> 
>          Right.
> 
>          Both are actually signed, BUT they are signed in different ways - 
> which is why Acrobat (Reader) treats them differently when they are opened.
> 
>          A Certified document is checked for validity on opening, and also 
> has the ability to grant digital rights w/o the need for encryption.
> 
>          A Signed document is only checked when asked and has no provision 
> for DRM.
> 
> 
>          It should be easy to take the existing signing code in iText and 
> use it to create a certified document.
> 
> 
> Leonard
> 
> ---------------------------------------------------------------------------
> Leonard Rosenthol                            <mailto:[EMAIL PROTECTED]>
> Chief Technical Officer                      <http://www.pdfsages.com>
> PDF Sages, Inc.                              215-938-7080 (voice)
>                                               215-938-0880 (fax)
-- 
All�e Guillaume
Development Engineer

ATCHIK
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