VideoJS - VideoJS is an HTML5 Video Player, built with Javascript and CSS, with a fallback to a Flash video...
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Plyr - A simple, accessible and customisable HTML5 media player
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
Flowplayer - Flowplayer is a video player for web sites.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.