I think this might be helpful to improve the usability of Moodle courses that are mainly "glorified PDF file repositories". Imagine...
... opening and printing PDF files direct on your Moodle coursepage without having to leave Moodle;
... using multiple platforms (Android, iPad, Mac, PC, Linux) to achieve the same look and feel of accessing PDF files;
... doing away with having to download a PDF file, then going to the Downloads Folder to retrieve it;
... doing all this on any Moodle theme.
Imagine no more.