An award-winning drawing program for children ages 3 to 12
Tux Paint is a free, award-winning drawing program for children ages 3 to 12. It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. Kids are presented with a blank canvas and a variety of drawing tools to help them be creative. Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn or photographic imagery to pictures, and a set of "magic tools" that provide filter effects (like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass). Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic, and a large collections of stamps are available as a separate download. Additional content can be added by parents and teachers, or downloaded from 3rd parties. Tux Paint is available for Linux, BSD, Windows, Mac OS X and Haiku operating systems.
JDraw is a pixel oriented graphics editor. It is entirely written in Java, easy to use and saves (animated) GIFs, JPEGs, ICOs (favicons) and PNGs. Requires J2SDK 1.4 or higher.
Mapographer is a cartography tool to easily draw maps of fantasy or real life worlds. Just paint the land mass, draw the terrain and place mountains, hills, trees and other places on it. You can simply customize it by adding own brushes, textures and symbols (like mountains, trees etc)
SkyDraw is a raster image editor developed with the wxWindows cross-platform windowing toolkit. The final supported platforms will include Linux, MacOS (8/9/X), and Windows. Features will include layers, channels, transparency, and potentially plugins.
Image viewer/editor for quick document insertion, along with the complete wpclipart collection of images (30k public domain images as of version 7.2) Packages are available for both Linux and Windows.