While writing the ScreenFlow review I needed the ScreenFlow icon to include in the post. Unfortunately Google didn’t seem to understand what ScreenFlow Icon was. So I was left trying to extract the icon from the Application.
Turns out this is extremely easy. Open Finder, and Copy (Command+C) the file/application/folder you’d like to extract an icon from.
Open Preview (Applications -> Preview.app) and click File -> New From Clipboard (or Command+N).
This gives you a couple different sizes of the icon. Shown below is Preview.app’s icon:

Now, to extract the icon click File -> Save As. Choose the format you’d like to save as (probably JPEG or PNG) and click Save.

It’s as easy as that!

Discerptor
Brad Jasper