Snapping to On-Screen Elements with the Ruler
How do I get the Ruler to snap to an on-screen element? To get the Ruler tool to snap to an on-screen element, hold down the Control key while dragging the ruler near the object you're trying to measure. When the calipers are shown, they will be used as the snapping point, otherwise the inner corner where the rule…
Toggling On/Off the Ruler's Calipers
How do I turn the calipers on the Ruler tool on and off? The Ruler tool's calipers can be toggled on and off from the Ruler's menubar item. With the tool open, select Rulers in the menubar and select "Display Calipers" to turn this feature on and off. You can also use the caliper toggle control, as seen in the ima…
