Showing and Hiding the Rulers, Grid, & Guide Lines
Step 1
Choose Rulers, Grid & Guides from the View menu.
Step 2
Click the Show check box under the Rulers, Grid, and/or Guide Lines heading in the Rulers, Grid & Guides dialog, then click OK.
• To turn off the display of the rulers, grid, and guides, click the appropriate Show check box again, then click OK.
Note: You can also use the Show Rulers command (Cmd-R) in the View menu to control the ruler display. If rulers are already displayed, you can double-click either one to display the Rulers, Grid & Guides dialog.