[Mac] Someone please tell me why I didn’t discovery this, oh, maybe six years ago? If you have a blog and write about software, you’re constantly looking looking for high quality icons to use. The method quoted at the bottom of this post from Macworld makes it easy.
Even easier, I’ve found, is a tip I stumbled upon a while back on another site. I’ve been unable to relocate the source, so regretfully can’t credit it, but I remember the tip: find an application in your Finder, and drag it onto the Preview icon in your Mac’s dock. Preview will then open, showing you all of the artwork used in that application, including the icon. You can then export a high quality version of it to use in your blog post.
In the Finder, select the program in question, and press Command-C (or if you love menus, select Edit -> Copy). You’ve now got a full copy of the application on your clipboard. . . Now launch Preview, and press Command-N (File -> New from Clipboard for you menu users). You may be surprised at the result: a full copy of the chosen application’s icons, in every available size.
∞ Easily view an application’s icons | Macworld