Gridlines are non-printing dotted lines at regularly spaced intervals that can help you line up objects on a slide. Figure 20-14 shows gridlines (and the ruler) enabled.

To turn gridlines on or off, use any of these methods:

• Press Shift+F9.
• On the View tab, in the Show/Hide group, mark or clear the Gridlines check box.
• On the Design tab, in the Arrange group, choose Align?Show Gridlines.

There are many options you can set for the gridlines, including whether objects snap to it, whether the grid is visible, and what the spacing should be between the gridlines. To set grid options, follow these steps:

1. On the Home tab, in the Drawing group, choose Arrange?Align?Grid Settings, or rightclick the slide background and choose Grid and Guides. The Grid and Guides dialog box opens (see Figure 20-15).
2. In the Snap To section, mark or clear these check boxes.
   • Snap Objects to Grid: Specifies whether or not objects will shift automatically align with the grid.
   • Snap Object to Other Objects: Specifies whether or not objects will automatically align with other objects.
3. In the Grid Settings section, enter the amount of space between gridlines desired.
4. Mark or clear the Display Grid On Screen check box to display or hide the grid. (Note that you can make objects snap to the grid without the grid being displayed.)
5. Click OK.

FIGURE 20-14
Gridlines and the ruler help align objects on a slide.

FIGURE 20-15
Set grid options and spacing.