The GIMP and Inkscape are famous but great.
Besides them I really like the various viewers of OpenStreetMap, like Marble, openstreetmap-client, emerillon and the editors for the same, like merkaartor.
The GIMP and Inkscape are famous but great.
Besides them I really like the various viewers of OpenStreetMap, like Marble, openstreetmap-client, emerillon and the editors for the same, like merkaartor.