How do I scale or rotate a part of an image rather than the whole?

You can scale or rotate part of an image by selecting that part with the [Selection] tool.

1. Choose the [Selection] tool from the [Tool] palette.

Here we used the [Rectangle] sub tool for reference.

2. Select the area on the canvas you wish to zoom in/out or rotate.

3. Select [Edit] menu > [Transform] > [Scale/Rotate].

4. Transform by dragging the guides and/or handles.

5. Click [OK] to finalize the transformation.

Please refer to the following pages for more information on how to transform images.