make a manual page

You need to activate the horizontal or vertical type tool, select the font, and the pt size.

Depending on your project, you may wish to add a description (text & numbers) to identify an object. You can add additional space which will not encroach on the object by enlarging the canvas, then adding the text in the extension. 

Go Image>Resize>Canvas size. The dialog allows one to scale the extension in %. I usually start with 25%. Press the anchor point in the dialog to extend at the top or bottom. Of course, you can extend side to side as well.

Simply add text layers.