Photoshop CS4 enables you to open and
view your images in various configurations on
the screen. You can open multiple similar photographs
at the same time to see which one is the best of
the group. You can also have two windows of the same
image open. Photoshop automatically opens
multiple images as separate tabs in one window. You can
quickly change from one image to the next by
clicking the tabs, and you
can close any images you do not need by clicking X on the image tab. You can select one image and open it in a separate
window while leaving all the others as tabs in the group
or view all the images as cascading individual
windows. You can also
tile multiple windows so they all fit
on the screen at once. You can open a second window of
one image and view an enlarged version in one
window and the full photo in the other, so you can
edit a particular area while still viewing the overall
effect on the entire image. Comparing specific areas on
similar photos is easy because you can match the areas
displayed in each of the images and even match a
zoomed-in location.