You probably already use the supplied app Grab for screenshots or numerous other free apps for this but did you know it’s Command-Shift-3 that actually gives you an entire screenshot. That will leave an image on your desktop as a PNG file, you can even hit Command-Shift-4, and get a little crosshair to select only a portion of your screen and do the same thing.
But if you need to get this straight into an image editing app, try this instead!
Hit Control-Command-Shift-3 (or 4)
This will copy the image to your clipboard, so you can simply paste it into your editing program of choice.








