Currently PDF Reader Pro Android version is available in the following languages listed below:
English(US), Simplified Chinese, Traditional Chinese, Spanish, French, Japanese, and German.
PDF Reader Pro follows system language as default, if you want to change the app language once only, please go to Settings on your Android device and find Language and input to customize languages as you wish. In addition, unsupported languages will be displayed as English by default.
If you'd like to see a PDF Reader Pro Android version in another language, please drop a line at support@pdfreaderpro.com.