The project is only available in English and does not support additional languages?

[yinnicocheng]

It seems that the project only supports the documents in English. I tried with a PDF file in Chinese. The result is jumbled. Is it possible for the author to integrate the feature into the project? Many thanks.

[QQQJoker]

You should install Chinese fonts
ubuntu:
sudo apt install fonts-wqy-zenhei
or
sudo apt install fonts-wqy-microhei

and then check again