FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor. It has a nice array of features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments. Its innovative but intuitive full-screen mode provides quick access to EXIF information, thumbnail browser and major functionalities via hidden toolbars that pop up when your mouse touches the four edges of the screen. Other features include a high quality magnifier and a musical slideshow with 150+ transitional effects, as well as lossless JPEG transitions, drop shadow effects, image annotation, scanner support, histogram and much more. It supports all major graphic formats (BMP, JPEG, JPEG 2000, animated GIF, PNG, PCX, TIFF, WMF, ICO and TGA) and popular digital camera RAW formats (CRW, CR2, NEF, PEF, RAF, MRW, ORF, SRF and DNG).

Features:
Image browser and viewer with a familiar Windows Explorer-like user interface

Support of many popular image formats:
True Full Screen viewer with image zoom support and unique fly-out menu panels
Crystal-clear and customizable one-click image magnifier
Superior Red-Eye effect removal/reduction with completely natural looking end result
Image modification tools: Resize/resample, rotate/flip, crop, sharpen/blur, brightness/contrast, etc.
Eleven (yes, 11) resampling algorithms to choose from when resizing images
Image color effects: gray scale, sepia, negative, Red/Green/Blue adjustment
Image special effects: watermark, annotation, drop shadow, framing, bump map, lens, morph, waves
Multi-level Undo/Redo capability
One-touch best fit/actual size image display support
Image management, including tagging capability, with drag-and-drop and Copy To/Move To Folder support
Histogram display with color counter feature
Compare images side-by-side (up to 4 at a time) to easily cull those forgettable shots
Image EXIF metadata support (plus comment editing for JPEGs)
Configurable batch processing to convert/rename large or small collections of images
Slideshow creation with 150+ transition effects and music support (MP3, WMA, WAV...)
Create efficient image attachment(s) for emailing to family and friends
Print images with full page-layout control
Create fully configurable Contact Sheets - just like the pros (and save $$$ on ink)
Create memorable artistic image montages from your family photos for personalized desktop wallpapers (Wallpaper Anywhere)
Acquire images from a scanner
Versatile screen capture capability
Powerful Save As interface to compare image quality and control generated file size
Run favorite programs with one keystroke from within Image Viewer
Create a no-install fully portable version of the program which can be run from a removable storage device
Configurable mouse wheel support
Supports multiple program skins
Supports dual-monitor configurations
And much more...