Paint.NET是一个图像和照片处理软件,它由华盛顿州立大学的学生开发和维护并由微软公司提供项目指导,早期定位于MS Paint的免费替代软件,现在逐渐发展为一个功能强大且易用的的图像和照片处理软件,支持图层,无限制的历史记录,特效,和许多实用工具,并且开放源代码和完全免费,界面看起来有点像Photoshop.该软件的开发语言是C#.Paint.NET v3.22 Released: January 12th, 2008
This release fixes a few minor bugs and adds a new, much-needed Reduce Noise effect.

New: "Reduce Noise" effect.
Changed: Ctrl+W will now close Paint.NET if zero images are open.
Fixed: In Windows XP, when launching web content, sometimes Internet Explorer was used instead of the user's chosen default browser.
Fixed: The Unfocus effect was not handling alpha values properly.
Fixed: The Brightness / Contrast adjustment was only displaying its text in English.
Fixed: The /auto parameter for the installer now correctly allows for an automated installation. This was inadvertently broken in 3.20.

更新：http://www.getpaint.net/roadmap.html
官网：http://www.getpaint.net

下载:Paint.NET v3.22 Final