Paint.NET is free image and photo editing software for computers that run Windows. 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. It started development as an undergraduate college senior design project mentored by Microsoft, and is currently being maintained by some of the alumni that originally worked on it. Originally intended as a free replacement for the Microsoft Paint software that comes with Windows, it has grown into a powerful yet simple image and photo editor tool. It has been compared to other digital photo editing software packages such as Adobe® Photoshop®, Corel® Paint Shop Pro®, Microsoft Photo Editor, and The GIMP.
Note: Paint.NET requires Microsoft .NET Framework v2.0.
Download: Paint.NET v3.20 | 1.39MB
View: Changelog
Link: Home Page
Note: Paint.NET requires Microsoft .NET Framework v2.0.

Still, awesome application. Not sure I could use my computer without it now a days.
I must say, I'm disappointed that PDN doesn't have a preferences pane of any sort--you can only set this option at install time.
Help -> Check for Updates, then click the Options button.
D'oh! That would explain the .net part of its name..Im a little thick sometimes.
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