Changing Object's Shape
Using a Clipping Mask
About Clipping Masks
A clipping mask is an object whose outline masks another object. You can treat such a mask as an infinite surface with a hole defined by the clipping path through which you can see a masked object.
You might be familiar with the crop tool that is present in any photo editing software. A rectangular clipping mask can do the same, but it is much more flexible. It can have any other shape and can also be applied to multiple separate objects. In addition to that, you can still edit the mask and masked objects after the mask has been applied.
Use Clipping Mask to Hide Parts of Objects
To apply a clipping mask to an object:
- Create a vector object that will be used as a clipping mask. Only the shape of its path matters.
- Place the clipping path over the object you want to mask.
- Select Modify > Make Clipping Mask command in the main menu.
The result is a ClipGroup object that includes the clipping path and masked object.
Only a vector object can be used as a clipping path. If you try to create a clipping mask out of a raster image, the rectangular boundary of this image will be used to create a clipping path.
You can mask any artwork.
A clipping mask has no fill or stroke. It doesn't retain any style that the original object could have.
Edit a Clipping Mask
To edit a clipping mask, you can modify the clipping path using vector editing tools.
In order to outline the visible part of the masked object, apply a stroke to the clipping path.
Edit a Masked Object
In order to edit a masked object, select it in the Layers panel. You should expand the ClipGroup to access the object.
Then you can modify the masked object using regular methods and tools.
Release Objects from a Clipping Mask
To release objects from a clipping mask, select the respective ClipGroup in the Layers panel or on the canvas. Then choose Modify > Release Clipping Mask from the main menu.
Notice that the clipping mask will turn into an invisible object because it had no stroke nor fill.