You can download and evaluate iPixer for free. Some of the features like saving is unlocked only by using a license key. iPixer is available for $39 per copy including free updates forever. The license key is per user and not per computer, which lets you install iPixer on Windows and Mac OS. You will find here a complete End-User License Agreement.
After payment is made and authorized, you should receive your receipt and license key (in separate emails) to your e-mail address. Then Unlock your copy of iPixer (Help / Activate) with your name and license key info.
