a graphic viewer that can view, edit, and convert image files and play video/audio formats. It does not have extensive image creation and painting capabilities
takes a two-dimensional image and creates a three-dimensional "fly around" model, giving the viewers access to the scene's depth and a range of points of view.
a collection of popular software routines on x86 class processors. Spanning simple arithmetic routines to rich domains such as image and signal processing, it provides a quick path to high performance development.
A bit more feature powered than Zamzar. With more formats and a bit more complicated interface. However, I can guarantee you that it’s worth the usage. No email needed. 100Mb limit
J. Jeon, V. Lavrenko, and R. Manmatha. Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2003, page 119--126. (2003)