1. Select the rectangle or the square with the Shape tool
2. Click and drag one of the corner nodes along the outline of the rectangle or square. As you drag, the four corner nodes each divide into two nodes with a round corner forming in between. As you continue to drag, the corners become increasingly round.
Note
You can round the corners of a rectangle and then make them sharp again.
Tip
You can use the Shape tool to round all of the corners of a rectangle (or
square) at the same time. A rectangle has a node at each corner. When you round
the corners of a rectangle, each corner node splits in two and an arc appears
between each of these two new nodes. You can control the size of this arc by
moving any of the corner nodes. Whenever you change one corner, the other three
corners also change.
How to
To shape a curve object
Related topics
Shaping lines, curves, and curve objects