FastStone Image Viewer is an image browser, viewer, converter, and editor with features including resizing, renaming, cropping, color adjustment, watermarks, and a broad array of other image-managing features. It also provides quick access to EXIF information and a thumbnail browser via hidden toolbars that emerge when you touch the edge of your screen with the mouse.

FastStone Image Viewer also offers a batch-image converter and resizer, a magnifier, and a built-in slide show with more than 60 transitional effects, as well as lossless JPEG transitions, drop-shadow effects, image frames, scanner support, and a histogram. It supports all major graphic formats including BMP, JPEG, JPEG 2000, GIF, PNG, PCX, TIFF, WMF, ICO, and TGA. Supports PSD format, fixes bugs, and improves performance.

What's New in version 4.0:

• Enhanced the skins and toolbar icons. Now the windows have drop shadow effect in Vista and Windows 7
• Added "Search and Replace" to Batch Rename
• Added "Renaming Preview" to Batch Rename
• Enhanced "Conversion Preview" in Batch Convert. Now it is possible to compare the original and converted images side by side
• In Advanced Options for Batch Convert, added an option to specify whether color adjustments (brightness, contrast, sharpening etc.) should be made before or after resizing.
• Shows GPS information in the "Image Properties" window. A "Show in Google Earth" button will be available if the image has GPS information
• Added "Border Effects" under Edit menu
• Added an option to remove EXIF/IPTC data when emailing images
• Added shortcuts for favorite folders
• Improved performance on network folders
• Improved compatibility with Windows 7
• Fixed bugs
• Other minor improvements