How to change OS X screen capture settings
Ever wish OS X’s screenshots ended up somewhere other than your desktop? Or you would prefer them to be jpg’s instead of png files? No shadow on the captured image? A little terminal trickery can change all that. Read on to find out how.
Change the screenshot image type
By default, OS X saves screenshots in the .png format (Portable Network Graphics). However, you can make OS X save your screenshots in many different file types including: .bmp, .jpg, .pdf, .tiff etc…
To make this change, firstly open up Terminal which can be found under Applications -> Utilities -> Terminal or you could quickly find it through Spotlight.
Once you have a terminal window open, enter the following 2 commands.
defaults write com.apple.screencapture type jpg killall SystemUIServer
So in this example, the first command will change the file type of the saved image to a .jpg file. You could replace ‘jpg’ with the other options such as bmp, pdf etc… as mentioned previously.
The second command will force the system user interface to reload so that your new screenshot settings will take effect. Don’t panic if you see your screen go a little crazy for a second or 2 as it reloads.
Change the screenshot default saved location
This example will save your screenshots to a folder in your home directory called “Screenshots”.
defaults write com.apple.screencapture location ~/Screenshots killall SystemUIServer
You can specify any folder location that you wish. A handy shortcut is to press the spacebar once to create a single space after the word “location” and then drag and drop the folder where you want to save screenshots onto the Terminal window. This will enter the exact path to that folder.
Disable window drop shadow
By default, OS X will add a drop shadow when taking a screenshot of an individual window with the Command-Shift–4-Space command. This can look nice if you’re adding the image to a presentation or document, but can be a pain if you’re wanting to add the image to a website for example.
To turn off the automatic creation of drop shadow, enter the following commands:
defaults write com.apple.screencapture disable-shadow -bool true killall SystemUIServer
If you wish to turn the automatic creation of drop shadow back on, just enter the following commands:
defaults write com.apple.screencapture disable-shadow -bool false killall SystemUIServer