[rogue_librarian]

I don't agree. Just delete the file when you are done. And for those people who don't, there are those who routinely rip audio CDs or DVDs; it's about just as difficult.

To give you an example, university libraries routinely grant their students access to scientific and other PFDs, more often that not without any kind of DRM. "Save as" would be all that it'd take to keep a copy, but I don't know many students that bother. The list goes on.