The question here was how to append another signature to an already
signed and encrypted document. I can't do it in Acrobat so, I suppose
that it's not to be done.

Best Regards,
Paulo Soares

> -----Original Message-----
> From: Leonard Rosenthol [mailto:[EMAIL PROTECTED] 
> Sent: Monday, December 20, 2004 3:48 PM
> To: Wahaj; Paulo Soares; [EMAIL PROTECTED]
> Subject: Re: [iText-questions] Signing a pdf document which 
> is originally encrypted
> 
> At 10:19 AM 12/20/2004, Wahaj wrote:
> >Ok then what is the purpose of the provided password 
> (whether owner's or
> >user's) in the PDFReader constructor
> 
>          In order to allow you to read a document that has been 
> encrypted.  For example, to retrieve metadata.
> 
> 
> >if we can't sign a pdf document.
> 
>          Modifications on encrypted document, esp. something 
> as complex as 
> signing, requires a LOT more internal mechanics inside of iText than 
> currently exist.  In addition, there are a variety of legal and 
> philosophical issues involved when done as TWO processes.
> 
>          Normally, you'd want to have encrypted and signing 
> done at the 
> same time by the same tool.
> 
>          So if you know the passwords to the documents (and 
> you would have 
> to do make this useful anyway) - just decrypt them all and then rerun 
> through iText for both crypt and sign.
> 
> 
> Leonard
> 
> --------------------------------------------------------------
> -------------
> Leonard Rosenthol                            
> <mailto:[EMAIL PROTECTED]>
> Chief Technical Officer                      <http://www.pdfsages.com>
> PDF Sages, Inc.                              215-938-7080 (voice)
>                                               215-938-0880 (fax)
> 
> 


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://productguide.itmanagersjournal.com/
_______________________________________________
iText-questions mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/itext-questions

Reply via email to