Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
Ytmp3.cc - By using our converter you can easily convert YouTube videos to mp3 (audio) or mp4 (video) files and download them for free - this service works for computers, tablets and mobile devices.
DjVuLibre - DjVuLibre: Open Source DjVu library and viewer
OnlineVideoConverter.com - OnlineVideoConverter.
DjView4 - Standalone viewer for DjVu files.
VidToMP3.com - VidToMP3.