You can change the font of text you have entered into a text box.  We have a recorded demo that demonstrates this. Click here to view it.

First use your mouse to click the text box on your document. Several icons will appear to the left of the text box. Select the "Text Style" icon.

Click the Font menu to display a list of available fonts.

Use your mouse to highlight the text you want to change and make a selection from the Font menu.