From the Scaling dialog box, you can adjust the scales of the X (Horizontal) and Y (Vertical) axes independently by dragging the scroll bars. This may however, cause the scales of the X axis to differ from that of the Y axis. Consequently, the shape of the original image will be altered. To avoid this, you can check the Sync check box to adjust the scales of the X and Y axes simultaneously, which will retain the original shape of the image. When you get the desired effect, press the OK button to confirm your settings and close the dialog box. If you are not satisfied with the adjustment, press the Cancel button to cancel your settings and close the dialog box.