A copyright notice on a web page reminds others the work is copyrighted and who owns the copyright. (For an official document: Copyright © 1998, University of Delaware. For a personal document: Copyright © 1998, Josephine A. Student.)
A copyright notice should be incorporated
into any original graphic files placed on the web. The copyright notice
then becomes part of the graphic.
The best way to protect your rights is to
register your copyright with the U.S.
Copyright Office.