This wonderful converter and image viewer, XnView, now is available for your portable unit. Portable XnView is a great freeware utility to process graphic files supporting hundreds and hundreds of formats.

With this versatile design tool, you will be able to perform various changes to your graphics such as: modify its size, adjust brightness, luminosity, modify the number of colors, apply filters and effects, etc.

And the rest of its functions are aimed to: finding images, Batch conversion, shot creation, screen shots, video shots and more.