@jackie_w
thx for the answer~*
The AdobeViewer can't show it correctly because it is written in chinese: so I just see question marks instead of chinese signs.
It's not such a big problem for me coz the most literature I read is in English or German, but Pocketbook said that the PBs can even display books in non-western languages without any problem if you just save the specific font in your PB.
That's why I'm a little bit disappointed, because I can't read a novel if in every line some signs are missing..