Blender

A powerful F/LOSS 3D animation application for GNU/Linux, Mac OS X and Microsoft Windows.

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FontForge

A F/LOSS font editor for GNU/Linux, Mac OS X and Microsoft Windows.

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Fontmatrix

A F/LOSS font management and selection tool for GNU/Linux, Mac OS X and Microsoft Windows.

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GIMP

A raster based image editor for GNU/Linux, Mac OS X and Microsoft Windows.

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Inkscape

A vector graphics editor for GNU/Linux, Mac OS X and Microsoft Windows.

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Scribus

A desktop publishing software for GNU/Linux, Mac OS X and Microsoft Windows.