I'm going to sound like a grouch, but that's not my intention. If the bitcoin PDF was chosen as a test file, it seems far too basic to be a valuable test for an Apple developer to be using (after all, PDFs can be insanely rich) and I have to believe that Apple is full of people that have Adobe on speed dial or are otherwise sufficiently creative to make a nice Apple-grade PDF that stretches the format to its limits.
It's possible that the test file is for an end user to verify function, not an Apple dev, I guess, but then in that case Id expect Apple to provide something much more clear (say, Apple logo with "if u can read this, great" rendered in multiple languages") that supported their aims of branding, lack of legal encumbrance, and international support.
It's possible that the test file is for an end user to verify function, not an Apple dev, I guess, but then in that case Id expect Apple to provide something much more clear (say, Apple logo with "if u can read this, great" rendered in multiple languages") that supported their aims of branding, lack of legal encumbrance, and international support.