Cannot read a pdf file because a font pack needs to be installed. Clicking OK You can download ' Adobe Reader X Font Packs - Extended languages' here.
There are Asian font packs, and I think they are part of the Acrobat Pro CD/disk image. If not, you should be able to download them from the Adobe website;.
Download the required Font Packs from Adobe. More info about the Adobe Reader 9.1 and the ScriptFrameWork here. Example script.