You are allowed to use this program 100% for free in the sence that there is no ‘trial time limit’, nor any ‘functionality limitations’. However, there is sometimes a small ‘nag box’ when you start it that is only removed if you pay a small fee to register it. NB, the registration fee is a small voluntary one time fee and there will never be any 'upgrade fees'. Each person that registers it will contribute a lot to allowing us to improve the software for future versions!

Features:
- The only image viewer you need for viewing and browsing images.
- Small, with very fast and highly tuned code (including SSE2 and MMX support).
- Uncompromising when it comes to image quality.
- Clean with no unnecessary menus and toolbars wasting your desktop space.
- Able to read all of the common image file formats.
- Easy to rotate, mirror, zoom, pan, and adjust contrast, brightness, sharpness, hue, saturation, gamma, et c.
- Image adjustments can be saved non-destructively and automatically reapplied when you next open the image.
- Index feature with very fast thumbnail-icon creation.
- Smart background preloading and caching of images.
- Includes a simple slide show scripting language.
- 'Run maximized', 'auto shrink', 'auto size', 'close all' and other unique options.
- User interface available in several languages.
- Freeware!