The files are saved straight to a folder of your choice in the format you specify or to the clipboard or printer. No more 'Print Screen'... open image editor... paste from clipboard... crop... export. Just double-click the form or press enter, and whatever is visible below the form is captured.
Cropper is very handy if you need to take a series of screen shots all the same size. You can also set it to automatically generate a second, scaled-down thumbnail image for each capture. This is the first tool I've come across that does automatic thumbnails of screen shots.
Another unique feature is the ability to have transparent portions of the captured window filled with a solid color in the final capture. This is useful when capturing 'skinned' user interfaces that don't have a typical rectangular window shape.
Cropper captures can be saved automatically to the folder of your choice as BMP, PNG, or JPEG files, or you can have them copied or sent directly to your printer. All options can be set by simply right-clicking on the floating capture frame.
Cropper isn't perfect; it can't capture menus, cursors, and transparent windows, for example. But it is definitely a unique approach to screen capture, and worth having in your arsenal of cool and useful tools. Developer Brian Scott offers the program for free, and the source code is also available. Well done, Brian!


