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.
Paint.NET 3.5 utilizes DirectWrite in Windows 7 to render text. DirectWrite is one of the new additions to the DirectX family of APIs in Windows 7 and enables better readability, adds support for a large variety of languages and scripts, and in conjunction with Direct2D provides superior rendering performance for Windows applications.
The final release of Paint.NET 3.5 brings some new UI changes to the application. This “refreshed” UI takes advantage of Aero in Windows 7 and Vista.