Paint.NET

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. An active and growing online community provides friendly help,  tutorials, and plugins.
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.

What is Creative Docs .NET?

Creative Docs .NET is a vector-based graphic design tool with support for rich text, ideal to quickly write short documents, manuals, posters, illustrations, schemas, plans, flow charts, and much more.

The interface is tailored for high productivity: it does never get in your way. Creative Docs .NET tools are simple, yet powerful. All styles and attributes can be modified interactively with a minimum number of mouse clicks. A color gradient, for instance, can be modified directly by dragging its handles in the document window.

Note: This software is being actively developed.

Creative Docs .NET 2.x is available for free as a full-featured version. It comes with no warranty whatsoever.