Graphics
freeware

Gimp
The famous GNU Image Manipulation Program.
Download

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Paint.NET
Is free image and photo editing software for computers that run Windows.
Download

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Picasa
Organize, edit, and share your photos.
Download

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_Inkscape
An Open Source vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard SVG file format.
Download

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Blender
Is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.
Download

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