Change the shape of a curve
You can change the points and segments of a path object during and after you create it. For a quick reference of modifications that you can make to a path, see Direct Selection tool modifier keys (Blend) and Pen tool modifier keys (Blend).
To change the shape of a curve
In the Tools panel, click Direct Selection .
Do one of the following:
Click a node on either side of the curve that you want to modify (your pointer will change to ), and then drag the node or drag the control handles to alter the tangent of the curve (your pointer will change to ).
Click a curve segment on either side of the curve that you want to modify (your pointer will change to ), and then drag the curve segment or drag the control handles to alter the tangent of the curve (your pointer will change to ).
Conseil Generally, when you drag one control handle, its opposite will adjust as well to give you a smooth, unified curve. However, this link can be broken by holding Alt down while you drag the control handle to adjust each control handle separately. For more information about adjusting control handles, see Redefine control handles for a point on a path.