What is XnView?
XnView is a utility for viewing and converting graphic files. XnView is provided as FREEWARE for private non-commercial or educational use (including non-profit organization).
Image IPTC, EXIF metadata support, EXIF auto rotation support, IPTC editing, Batch convert, batch rename, Create or edit Multi-page file (TIFF, DCX, LDF), 44 languages support (Windows only), Multipage TIFF, Animated GIF, Animated ICO support.
Portable version with support of 42 languages: http://portableapps.com/apps/graphics_pictures/xnview_portable Version for U3 USB: (1) http://www.xnview.com/en/downloadwin32.html (2) http://software.u3.com/Product_Details.aspx?ProductId=301&Selection=2&Lang=en-US