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 3.30 - Final

Changes in version 3.30:
* Italian translation.
* Fragment, added to the Effects -> Blurs menu.
* Ability to save PNG's at 24-bit and 8-bit color depths.
* Ability to save BMP's at 8-bit color depth.
* "Auto detect" option for PNG, BMP, and TGA -- this will analyze the image and choose the lowest bit-depth that can save the image without loss of quality.
* IndirectUI has been extended with new controls and rules, and can now also be used for file type configuration UI.
* Bug fixes.