[bentcorner]

Yeah, exactly. I OCRd the first line of the text and manually decrypted the first line of the book just to verify that's what was happening. You could mitigate it by having more complex font files with multicharacter glyphs and include non printing characters in the stream. Probably a "good enough" solution to stop the copy/pasting folks. Anybody knowledgable enough to crack this is is probably not going to waste the time and torrent the book anyway.