Reflecting an object flips the object across an invisible axis that you specify. You can reflect objects using the Free Transform tool, the Reflect tool, or the Reflect command.
Drag a handle of the bounding box past the opposite edge or handle until the object is at the desired level of reflection.
To maintain the object’s proportions, hold down Shift while dragging a corner handle past the opposite handle.
Click to set the second point of the invisible axis. When you click, the selected object flips over the defined axis.
To reflect a copy of the object, hold down Alt (Windows) or Option (Mac OS) and click to set the second point of the invisible axis.
Adjust the axis of reflection by dragging instead of clicking. Shift‑drag to constrain the angle by 45°. As you drag, the invisible axis of reflection rotates around the point you clicked in step 3 and an outline of the object appears reflected. When the outline is in the desired position, release the mouse button.
For finer control, drag farther from the object’s reference point.
To reflect the object around the object’s center point, choose Object > Transform > Reflect or double-click the Reflect tool.
To reflect the object around a different reference point, Alt‑click (Windows) or Option‑click (Mac OS) anywhere in the document window.
To reflect the object, click OK.
To reflect a copy of the object, click Copy.