To crop pictures in ALSee, you can select the part of a picture that you want to keep then save it as a BMP, GIF, JPG, PCX or a TIFF.
Just double-click on any picture to get into ALSee's Zoom mode, make a selection, and Right-click and choose the save option. You can then select the best image format when you save your pictures.
ALSee sports a rich feature set with an equally rich interface that's designed to help you do what you want as quickly and easily as possible. Have a quick look at a few highlights below. Click them for screen shots and more information.