<< If they screwed up when they made it, you're out of luck. 🙁
They probably just gave a printed manual to some intern and made them scan it without giving them specific instructions on how to save the images or use OCR--even though it would have been quicker to just hunt down the word or Quark files. I had a job drawing circuits for an automotive company once, and when I found a way to electronically convert the old files they were having me reproduce to the new system automatically, they said no, because then I wouldn't have anything to do, so back to sketching in autocad 8 hours a day... Ok, enough of my sob story. 😀 >>
I hope you at least got the benefit of increasing your facility with Autocad. You are probably right, and they probably had someone scan and scan and the thing is they have scores and scores of their manuals at their website and they all seem to have that cruddy quality. It's a shame, in my view, but it beats nothing. At least they aren't too hard to find. In fact they are easy to find. Most big companies' websites are pretty steep climbing to find what you are looking for. I kind of hate PDF's for the very reason that you can't get ahold of the text. I guess they do that so you can't mangle it. Maybe they did this so you couldn't get the stuff and scan it and OCR it. Doubtful, but who knows?