Macos – Mac – copy screenshot to clipboard at 200+ percent zoom: how to control this

macosscreenshot

I just got a MacBook with the retina display and when I press CTRL+SHIFT+CMD+4 I get the expected behavior: it copies the selected area as a screenshot to my clipboard. The problem is that it copies it 200+ percent zoom. Shrinking it down to the right size makes it pixelated and so I'm not getting an accurate screenshot (as I see it when it's taken).

Are there settings somewhere I can change to make it copy at the zoom level I actually work at?

ADD:
My boss has an older Mac without retina display and he doesn't have this problem. I don't know if it has anything necessarily to do with retina display though.

Best Answer

I don't know of a setting to automatically scale down the screenshot, but here are a few alternatives:

Use RetinaCapture.
After taking the screenshot, open the Preview application, press ⌘N to paste the screenshot into a new document, then select Tools > Adjust Size... and scale to 50% with Scale proportionally and Resample image checked. This should create a smooth sharp non-pixellated image. Then press ⌘A (Select All) followed by ⌘C (Copy), and you'll have the scaled-down screenshot in your clipboard.
Follow this tutorial to create a folder action which will automatically scale down screenshot image files.

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OS X includes a nice command-line screen capture utility named, simply enough, screencapture. While there’s not a ton of documentation on this program, man screencapture will give you the basic options. Once you’ve used ssh to connect to the Mac whose screen you wish to capture, you need to execute the screencapture command with root privileges. You can also specify some of the command line arguments, as shown in the man page. For instance, here’s how I captured the login window:
First, I had to get the login window on-screen. To do that, I just chose Login Window from the Fast User Switching menu in the menubar. If you haven’t enabled Fast User Switching yet, you’ll have to do so first—it’s in the Login Options section of the Accounts System Preferences panel.

On the second Mac, I opened Terminal (in Applications: Utilities) and used the command ssh to connect to the first. (See the No Files Left Behind article for more detailed info on using ssh to remotely access another Mac.)
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The first line just switches me to the Desktop folder of the user that I logged into via ssh. The second line actually takes the screenshot; I’ve used -ttiff to set the type to TIFF ( -t is the ‘set type’ option, and tiff is the type, with no added spaces!), and then specified the name for the file. If you don’t want to hear the camera-clicking sound on the remote Mac, use the -x option.

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Also see man pbcopy for info on it and pbpaste.

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