Paint.NET is an image and photo manipulation software. It supports layers, unlimited undo, special effects, and a wide variety of useful and powerful tools.

Paint.NET Features
Simple, intuitive user interface
Every feature and user interface element was designed to be immediately intuitive and quickly learnable without assistance. It is also designed to be immediately familiar to users of the original MS Paint software that comes with Windows.
Layers
Usually only found on expensive or complicated professional software, layers form the basis for a rich image composition experience. You may think of them as a stack of transparency slides that, when viewed together at the same time, form one image.
Powerful Tools
Paint.NET includes simple tools for drawing shapes, including an easy-to-user curve tool for drawing simple splines or Bezier curves. The facilities for creating and working with selections is powerful, yet still simple enough to be picked up quickly. Other powerful tools include the Magic Wand for selecting regions of similar color, and the Clone Stamp for copying or erasing portions of an image. There is also a simple text editor, a tool for zooming, and a Recolor tool.
Unlimited History
Everybody makes mistakes, and everybody changes their mind. To accommodate this, every action you perform on an image is recorded in the History window and may be undone. Once you’ve undone an action, you can also redo it. The length of the history is only limited by available disk space.
Special Effects
Many special effects are including for perfecting your images. Everything from blurring, sharpening, red-eye removal, and embossing are included. Also included is our unique 3D Rotate/Zoom effect (new for v2.5) that makes it very easy to add perspective and tilting.

Minimum System:

• Windows XP (SP2 or later), or Windows Vista, or Windows Server 2003 (SP1 or later)
• .NET Framework 2.0
• 500 MHz processor (Recommended: 800 MHz or faster)
• 256 MB of RAM (Recommended: 512 MB or more)
• <1024 x 768 screen resolution
• 200+ MB hard drive space
• 64-bit support requires a 64-bit CPU that is running a 64-bit version of Windows XP, Windows Vista, or Windows Server 2003, and an additional 128 MB of RAM

Homepage: http://www.getpaint.net/index2.html
Download: http://www.getpaint.net/download.html
File Size: 3.81 MB