Difference between Adobe PDF eBook and PDF?
Forgive the dumb question - I'm actually very familiar with PDFs as I've worked in document production (and know ins and outs to Acrotbat Pro that most people don't) - what I don't understand is whether a 'PDF E-book' is just a PDF with password protection?
Some e-tailers have their e-books available in both Epub and PDF format. What puzzles me is, if a person buys the PDF version, what's to stop them from copying it and sending it to other people? Or is that the difference with a 'PDF eBook' - some encryption that prevents people from doing this?
thanks for your help!