To show or hide rulers:
- From the View menu, select Show Rulers. A check mark is displayed next to the menu item when the rulers are visible.
To change document units:
Do one of the following:
- With the Zoom Tool selected, choose a unit of measurement from the pop-up menu on the context toolbar.
- From the File menu, select Document Setup, and in the dialog choose a unit type from the Document Units pop-up menu.