Right then. On the Internet, there are many software both free and otherwise and some of them are gems. And this here page list out the free/open source graphics programs that I know of (to date):
Photo editing/raster/bitmap graphics:
Vector graphics:
3D Graphics
Do note that each of these links open up a new tab/window.
* – thanks to chubbybots who introduce me to Photoscape.
BD77's of Figure & Plamos 