Every once in a while you need the screen capture function, maybe it’s because you can’t download an image from flickr but still want it in your library or you need to record your workflow for a tutorial. Whatever the reason, Mac OSX offers two simple shortcuts to grab a screenshot. The first one makes a simple fullscreen shot. Just use the combination “apple+shift+3“. It should save it as png on your desktop. At least those were my default settings. It even makes a nice shutter sound.
The second shortcut is what makes it interesting. Clicking “apple+shift+4” gives you a little crosshair which lets you draw a rectangle of the screen portion you want grab. It works exactly like the Marquee tool in Photoshop. Once you’ve started your selection you can release the keys (not the mouse click) and
- hold ALT to draw from center
- hold SHIFT to constrain height or width (depending on your next mouse movement)
- hold SPACE to move the current selection
Once you’ve released the mouse you’ve got a perfectly cropped picture. This technique saved me already quite some time and we all know how precious time is in a designer’s life.