Open the Lifetouch yearbook program. Once the program boots up, choose the current yearbook project -- the one you wish to adjust.
Pick the page you wish to change from the drop-down menu at the top. You can alter the transparency of the entire page or of individual images.
Click to select the area you wish to make more or less transparent. Once the image or page has been selected, you will see a clear highlight around the area.
Choose the proper transparency -- or "opacity" -- from the drop-down menu on the left-side toolbar. The image will instantly adjust, so you can decide what the proper amount is as you work.