To adjust the magnification of the active image, click the arrow on the right and select the magnification factor from the list. You may also enter the magnification factor (in percent) manually and press ENTER. If the image has a Selection, ImageWarp will attempt to keep the center of the selection area in the center of the image frame after the new zoom factor is applied. Otherwise the center of the image will be assigned a point of interest.
Note that Zoom commands do not change the content of the image, but only its appearance in the image frame. To change the actual size of the image, use Resize command in the Edit menu