Linux Document Viewer pdf solves ubuntu with Chinese garbled characters. It is found that when the system's default Evince program is used to view the pdf Document, the Chinese pdf Document is displayed with garbled characters and the documents are searched online, the following methods are found: Step 1 of www.2cto.com: Install the Chinese language support package online (If adobe reader is installed, skip this step and find that adobe reader still has many problems and does not need to be used, remove from the system): sudo apt-get install xpdf-chinese-simplified xpdf-chinese-traditional Step 2. After installation, open the pdf file. If the file is still garbled, install poppler-data: Starting from 8.04, the source provides support for the poppler-data installation package. You can directly enter the command sudo apt-get install poppler-data plugin to download the tar.gz package and install it on your own. www Step 3 of .2cto.com: on my machine, after the installation is completed in the previous step, open the pdf document and find that Chinese garbled characters have all become blocks. So proceed to Step 3 and delete the font (Key, otherwise it is still garbled) sudo rm/etc/fonts/conf. after d/49-sansserif.conf is complete, open the pdf document and find that the Chinese font is properly displayed. Now, the problem is solved.