Originally Posted by Terisa de morgan
That's not really true. PDF is designer for an exact size. It can be A4, A3 or 6" (I know people who only read PDF fitted to 6"). But trying to read a PDF fitted for A4 in a 6" inches.... no good.
You are most probably right, and I agree allheartedly. I myself have never been in touch with anything but A4 (or the equivalent US sizes) PDFs.