> >   how can i set Master
> > Password to "No" ?
> You don't. Use a master password you know, and use that 
> password when you want to merge the PDF documents.

Agreed.  This need not be a fixed value either.  It could be something
you compute based on the file name for example... Or based on some data
in the PDF itself (XOR the document ID with some properly bizzare chunk
of bits... 0xDEADBEEF for example (only not that).  

You could open the file with the user password, get whatever data you
needed, compute the master/owner password, close it, and reopen it with
the owner password.

Alternatively, you could /not/ encrypt the separate files at all, and
only encrypt the merged files.  I suspect the individual PDFs will never
end up in front of a user on their own, right?  If so, protecting them
is pointless.  You only need to lock down the files that end up in front
of a user.

--Mark Storer
  Senior Software Engineer
  Cardiff.com

import com.cardiff.disclaimer;
Disclaimer<Cardiff> DisCard = null;

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