If you’re using Adobe Illustrator on a Mac, you may want to add a font to your document. Fonts can be added in a few different ways, but the easiest way is to use the Type Tool (T) and select the font you want from the drop-down menu. Once you’ve selected the font, click on the text or object you want to use it on and then click on the Type Tool (T) again. This time, select “Font” from the drop-down menu and click on OK. ..