Pain.Net

System Requirements
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, and an additional 128 MB of RAM

Please note that Paint.NET uses your hard drive to store temporary files related to undo/redo. Because of this, actual disk space requirements will depend on the type of actions you perform on an image, and on the size of the image.

Features

Simple, intuitive, and innovative user interface Every feature and user interface element was designed to be immediately intuitive and quickly learnable without assistance. In order to handle multiple images easily, Paint.NET uses a tabbed document interface. The tabs display a live thumbnail of the image instead of a text description. This makes navigation very simple and fast.

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.