Adjust Bezier Handles Independently in GIMP

In GIMP, adjusting the control handles of a cubic Bezier curve independently allows you to create sharp corners, cusps, and complex vector shapes without maintaining smooth continuity between curve segments. By default, moving a Bezier handle causes its opposite partner to rotate collinearly to preserve a smooth transition. This guide details how to use the Shift modifier key within GIMP's Paths Tool to break handle symmetry and adjust each control point on its own.

Step 1: Select the Paths Tool

Activate the Paths Tool from the toolbox or by pressing the shortcut key B. Ensure the tool mode in the Tool Options panel is set to Design.

Step 2: Reveal the Control Handles

Click directly on the target path to activate it, then click the anchor point you wish to edit. The anchor point will display two directional control handles extending outward if it is part of a curved segment.

Step 3: Adjust a Single Handle with the Shift Key

To adjust one control handle without moving the other:

1. Hover your cursor over the specific handle end you want to adjust.
2. Press and hold the Shift key.
3. Click and drag the handle to your desired position.

Holding Shift disconnects the angle lock between the two handles. You can now freely change the length and direction of the selected handle, forming a sharp corner or custom angle at the anchor point while the opposite handle remains stationary.

Reconnecting Handle Angles

If you decide to restore a smooth curve, click and drag the handle again without holding the Shift key. Moving the handle normally will snap the opposing handle back into alignment, restoring collinear continuity across the anchor point.