To zoom in and view any part of your photo during editing, click on the magnifying glass at the bottom of the page. A small preview box will appear in the upper right-hand side of the viewer. At the bottom of this box you may select from five distinct levels of magnification. Choose 25%, 50%, 100%, 150% or 200% to zoom in or zoom out, and then click on your photo inside the small window and drag it in any direction to pan across the surface of your image. Click the "X" in the upper right-hand side of the preview box in order to zoom back out.