Object snapping

Object snapping can be turned on using the Snap modifier for the Selection tool, or the Snap to Objects command in the View menu.

If the Snap modifier for the Selection tool is on, a small black ring appears under the pointer when you drag an element. The small ring changes to a larger ring when the object is within snapping distance of another object.

To turn object snapping on or off:

Select View > Snapping > Snap to Objects. A check mark is displayed next to the command when it is on.
When you move or reshape an object, the position of the Selection tool on the object provides the reference point for the snap ring. For example, if you move a filled shape by dragging near its center, the center point snaps to other objects. This is particularly useful for snapping shapes to motion paths for animating.

Note: For better control of object placement when snapping, begin dragging from a corner or center point.

To adjust object snapping tolerances:

Select Edit > Preferences (Windows) or Flash > Preferences (Macintosh) and click the Editing tab.
Under Drawing Settings, adjust the Connect Lines setting. See Specifying drawing settings.