Mmm.. I guess so. I've purchased goodreader for iPhone, a while back. too bad there's no free upgrade to iPad version

. But somehow when I made a pdf (of a magazine I work for), with ttf fonts rarely used, the fonts came out garbled (while looks ok in flow). Is this because i didn't embedded the ttf fonts?
I also tested several other free pdf readers for ipad. So far they're good, but give same garbled fonts issue.