Definition: Public domain is clip art, images, text, programs, etc. that is not copyrighted. Public domain clip art has no terms of usage or conditions attached and you may copy it, sell it, claim it as your own and use it in any manner that you wish. Public domain is often used incorrectly on Web sites when describing freeware, shareware, linkware and Web collections of clip art.
Public domain clip art collections are few and far between. Most public domain collections are black and white and will require clean up work, coloring and resizing with a graphics program before the images may be used.