Re: PIL 2ed, electronic version purchase?

["Bogdan Marinescu" <bogdan.marinescu@...>]

>
> DRM simply does not work. Even *with* any form of encoding, it will be
> hacked. If it can be displayed on a screen, it can - and will - be
> copied.
Everything can be hacked, really, it's just a matter of how difficult
it is. Some sort of "visual watermark" (for example the customer's
name and other identification elements appearing as part of the
background on each page, but without interfering too much with the
actual document content) is generally pretty tough to break.