You can also use keyboard shortcuts to format text as a superscript or subscript. To add a special character like the trademark or copyright symbol, use the Special characters item in the Insert menu.

In Pages, with text selected, either choose Format > Font > Baseline and then Superscript or Subscript, or press Command-Control-plus for superscript or Command-Control-minus for subscript.

Using the superscript and subscript buttons. 1. Select the text you want to format as either a superscript or subscript. 2. In the ribbon, click the "Home" tab and then click either the ...

In Word, you can use the toolbar customization menu to add the super/subscript buttons to a toolbar. In Word 2004, you’ll find that menu in View -> Toolbars -> Customize Toolbars/Menus.