Resizing a Mask

To resize a mask:
  1. Click the mask to select it.
  2. Click and hold on an anchor point, then drag the mask to the desired size.
    Resizing a mask.
    The Maintain proportions lock button Lock icon on the toolbar constrains the ratio of the width and height when the mask is resized. By default, the Maintain proportions lock button is selected.
    Maintain proportions lock button.