I'm using Adobe Reader 9 to read a pdf of a Chinese grammar book. I tried copying the characters and pinyin from the pdf into Mnemosyne to use for studying, however, it just comes up blank. I did it for another pdf and it comes up with weird characters. I downloaded the Chinese Simplified support and it does the same thing even after restarting my computer. Both pdfs allow for copying and were created with Adobe Distiller 7. I don't know what the problem is, but I would very much appreciate any help so I can get to studying.