Paint.NET

Product: Paint.NET
Publisher: dotPDN
Website: www.dotpdn.com
Type: Open Source
Requirements: Windows XP/Vista/7/8

Paint.NET is free image and photo editing software. It features an intuitive and innovative user interface with support for layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. An active and growing online community provides friendly help, tutorials, and plug-ins.