FastStone Image Viewer is an image browser, viewer and converter that supports resizing, renaming, cropping, color adjustments, watermarks, lossless JPEG transitions, drop shadow effects, image frames, scanner support, histogram and more. It also includes a built-in slideshow with 60+ transitional effects. It supports all major graphic formats including BMP, JPEG, JPEG 2000, GIF, PNG, PCX, TIFF, WMF, ICO, TGA and several Camera RAWs.
The program includes metadata (EXIF) tools including the ability to pull up a map of where a given picture was taken by looking at GPS data.