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#.下载:Paint.NET 3.5.8 Final

Paint.NET v3.5.8 -  released on March 5th, 2011
This update fixes some issues with the fault-tolerant save feature introduced in 3.5.7.
* Fixed: Saving to a folder that has been moved or renamed will display an error instead of crashing (regression from 3.5.6)
* Fixed: Saving to a Sharepoint site will now work (regression from 3.5.6)
* Fixed: Saving to a file that is marked as read only will now give an error instead of crashing (regression from 3.5.6)
* Fixed: General reliability and correctness improvements to fault-tolerant saving