If you decide that your text or photo needs copyright protection, you may want to add the ‘copyrighted material’ symbol to it with your personal name or the name of your business.
The symbol sits on the same key as the letter ‘g’ on British and American QWERTY keyboards. Press Option and type ‘g’, you will get the ‘c’ inside a circle — ©. On the French AZERTY layout the sign is with letter ‘c’. Press Option and type ‘c’.
Registered (®) sign is Option+R on both QWERTY and AZERTY layouts.
Copyright (©), registered (®), trade mark (™) and a number of other letter-like signs are also in the Character palette. Under Edit menu choose Special characters and when the character palette opens go to Symbols > Letterlike Symbols. Find the sign you want, click on it and drag to your document. It inserts in text like a letter.
Characters from the pallette work with TextEdit too: access the Character palette via Edit > Special characters.