Pinta is a free, open source drawing/editing program for Windows, Linux, and Mac (Requires .Net 4 or
Mono)
Pinta: Painting Made Simple
News Update: Pinta 1.4 has been released for Windows, Linux, and Mac! The Release Notes are available here and Pinta can be downloaded here.
Pinta is a free, open source drawing/editing program modeled after Paint.NET. Its goal is to provide users with a simple yet powerful way to draw and manipulate images on Linux, Mac, and Windows.
Features:
Full History
Don't be afraid to experiment, Pinta tracks your full history so you can always undo.
Adjustments and Effects
Pinta includes over 35 adjustments and effects for tweaking your images.
Your Workspace
Like docked windows? No problem. Floating windows? No problem. Pinta will even let you mix and match.
Drawing Tools
Use easy drawing tools to draw freehand, lines, rectangles, ellipses, and more.
Unlimited Layers
Use layers to help separate and group elements of your image for easy editing.
Bi-Tri-Quad-Lingual
Use Pinta in your language. Pinta is at least partially translated into over 55 languages.
Pinta is a free application (Personal, Education and Commercial) under the terms of the MIT X11 License.
http://pinta-project.com/download.ashx