A clipping mask is an object whose shape masks other artwork so that only areas that lie within the shape are visible—in effect, clipping the artwork to the shape of the mask. The clipping mask and the objects that are masked are called a clipping set. You can make a clipping set from a selection of two or more objects or from all objects in a group or layer. The object on top of the layer clips all of the objects below it.
How to make a clipping mask:
Create the object you want to use as the mask. (i.e. a circle)
Note: This object is called the clipping path. Only vector objects can be clipping paths.
Move the clipping path above the objects you want to mask in the stacking order.
Select both the clipping path and the objects you want to mask.
- Choose Object > Clipping Mask > Make