This article explains how to add the copyright symbol to your images. This option is for photographers who feel the need to place a distinct copyright notice on their images to discourage eproduction of their work without their permission. This symbol will also notify printing services that the image being presented to them is protected under copyright law. In Darkroom, you can send back print information to the lab under mysetup->Fulfillment Options->Edit Back Print Info…
Here is the easiest way to add the © Copyright symbol to the Backprint info.
Click Start->Run type charmap and click ‘ok’ find the © opyright symbol and click on it so that it is enlarged. Then click select and copy. Now go to the Edit Back Print Info section of Darkroom web edition and paste into the text field.
You can also hold your ALT and press 0169 on your numberpad.