My favorite book is a little known one called “Black Holes and Timewarps: Einstein’s Outrageous Legacy” and I reference it so much that I would really like a copy that’s fully mine and searchable, but I also care about the author receiving compensation for the purchase. Where do you get your PDF copies from?
That’s not always true—many authors request that that their publishers sell their ebooks without DRM.
That’s why I said “that book”, not “any book”.