On 23/11/2010 4:29, lucio wrote:
>        now we want to set a timespan of these permissions, for example:
> before Dec 31, 2010,the pdf file need a password to access and can not be
> copy/printed, after this period,user can open the file without limits  (need
> to remove the limits we set before).
>
>           Is there any solution of this issue?  hope to receive your reply or
> some suggestions about this requirement.

No, there is no such functionality in ISO-32000-1 (the PDF standard), 
hence it's not possible with tools that implement that standard.

What you're looking for is a DRM solution that is built on top of the 
standard (and that will impose specific requirements concerning the end 
user's PDF viewer).
-- 
This answer is provided by 1T3XT BVBA
http://www.1t3xt.com/ - http://www.1t3xt.info

------------------------------------------------------------------------------
Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
Tap into the largest installed PC base & get more eyes on your game by
optimizing for Intel(R) Graphics Technology. Get started today with the
Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
http://p.sf.net/sfu/intelisp-dev2dev
_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions

Many questions posted to this list can (and will) be answered with a reference 
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples: 
http://itextpdf.com/themes/keywords.php

Reply via email to