RE: [slightly OT] File protection from copying

["Dan Goldstein" <DGoldstein -at- riverainmedical -dot- com>]

"It is impossible to copy the images and text used in a CopySafe PDF
document, even by using Printscreen or screen capture software."

How do they do that?

(By the way, this thread is not OT at all -- PDF security is a big issue
in our world.)

> -----Original Message-----
> From: Craig Haiss
> Sent: Friday, January 25, 2008 6:29 AM
> To: techwr-l -at- lists -dot- techwr-l -dot- com
> Subject: Re: [slightly OT] File protection from copying
> 
> > --- Lev Abramov wrote:
> > A friend has just completed writing a book which he wants 
> > to market online as an e-book. He's looking for a file 
> > format which would ensure that the e-book can only be 
> > used on one computer and not be circulated 
> > freely in violation of copyright.
> 
> CopySafe (http://www.copysafe.net/) looks promising for 
> protecting PDFs. Their website implies that it offers more 
> robust PDF protection than just the password-type protection 
> offered by most PDF protection tools. Also, PDF seems to be a 
> rather popular format for e-books...
> 

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