Rescued from truncation:
Who scans and uploads papers to archive.org..? As far as i can tell,=20 anyone can.=A0 SO, if you're going to do this, please make your PDF=20 compatible with Acrobat Reader 5 or later (or better yet, AR4 or=20 later).=20 "Portable document format" doesn't mean anything when you have to=20 keep downloading the latest version of Acrobat reader. It's idiotic to=20 make a PDF that requires Acrobat Reader 6 or later. Thanks.=20 Paul P.
Incidentally, I disagree. Acrobat Reader is free, so you _can_ simply download the latest version (currently 8). Or do the newer versions not work on all operating systems?
That said, pdfs of scientific papers are rather unlikely to require features that weren't yet available in version 3.