Clipping involves positioning one layer or object inside another, creating a parent - child layer relationship. The path of the parent becomes the new boundaries for the child. Any areas of the child layer (object) which lie outside its parent's path are masked (hidden).
Clipping can also be used to confine an adjustment, filter or mask to a single layer or layer group.
Any layer can act as a parent or child in clipping relationships. Therefore both pixel and vector layer content can be either clipped or clipping.
When scaling a parent layer, child (clipped) layers scale to maintain the correct aspect ratio. Scaling a clipped layer has no effect on the parent layer. A clipped layer can be edited independently from its parent, e.g. adjusting opacity, and/or blend mode.
To clip layers:
On the page, position the layer to be clipped so it overlaps the layer (or object) which will perform the clipping.
Do one of the following, with the layer to be clipped being selected:
On the Layers panel, drag it on top of the layer which is to perform the clipping.
On the Arrange menu, select Move Inside.
To remove clipping (unclip):
Do one of the following:
On the Layers panel, drag the clipped layer outside the parent layer.
Select the clipped layer, then select Arrange>Move Outside.