Dec 06, · Adobe Reader 9 significantly improves the viewing of XFA forms for accessibility, while providing greater screen reader support. Adobe Reader 9 MUI. Adobe Reader 9 MUI is Adobe's Multilingual User Interface version. This product is capable of installing any combination of supported languages. So, for example, you can install French, German, and Software Version: About: Adobe Acrobat Reader DC software is the free global standard for reliably viewing, printing, and commenting on PDF documents. And now, it's connected to the Adobe Document Cloud − making it easier than ever to work across computers and mobile devices.