In 1998 One Man And A Cat released one of the first thumbnail-based image viewers into the market. Its ease of use and quick thumbnail indexing prompted millions of downloads worldwide. By 2001 however, the number of image viewers had dramatically increased and One Cat Viewer went on a long hiatus. Five years later One Cat Viewer has been completely redesigned and recoded. The new version is sleaker, more flexible, and even has a smaller footprint on your hard drive. And did I mention One Cat Viewer is free? No adware, no nag screens, no time limit. Free for personal or business use. * Fast Thumbnail Caching * Preview a sampling of each directory (new in 4.1) * Choose your thumbnail size and quality * Customizable colors and fonts * Resizable navigation, thumbnail, and image panes * Slide shows, fullscreen viewing, and zoom * Transition Effects in Full-Screen Slide Shows (new in 4.1) * Rotate, flip, and crop your images * Brighten, darken, and equalize * Multi-level undo/redo (new in 4.1) * Lossless JPEG saving for many operations * Image conversion to JPEG, GIF, PNG, and more * Conversion includes color reduction and image resizing * Image printing, with print preview One Cat Viewer sports a large easy to read toolbar for quick access to the most common functions you perform while perusing through your photo collection. Navigation controls, slide shows, full screen mode, color and font customizations, zooming, and image transformations are all available and a click away. Need to convert an image into another format? One Cat Viewer can handle that. Images can be saved in the JPEG, GIF, PNG, TGA, PCX, or BMP formats. You can also convert the number of colors used in the image or resize its dimensions. A preview thumbnail gives you a visual look at how your converted image will look. When saving as a JPEG, Viewer provides valuable hints on quality and smoothing settings.