It has various predefined capture systems, so it can capture the whole screen, or cropped versions selected by using a sliding frame to choose the area, or with its practical and automatic window capturing system. If you choose this option, just move the cursor over a window, and its exact area will be selected without needing to do manual crops later.
It is possible to choose the output format (bmp, gif, jpeg, etc.), redefine its size, add borders or shading, choose the destination folder, and even decide whether you want a pop up window each time you capture the screen.
When you launch Gadwin PrintScreen the program will stay open in the background. You can access its options clicking the icon on the Windows bar. There, you can choose the type of shot you want, but it is much easier to assign a key to each of these actions, which you can do from the program's interface.