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It's very easy to take a screenshot on the Mac with either Command-Shift-3 or Command-Shift-4, and they will be dumped on your desktop. One major annoyance, however, is that the files created have no extension.

That may not be a problem on the Mac, but when you're trying to email these files to Windows users, they cause problems.

So the question is -- how can I force the Mac to save the screenshots with the .png extension? Thanks.

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up vote 4 down vote accepted

They do have a .png file extension. Are you sure it's not just hidden?

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Of course. Stupid me. Thanks. – Axeva Jun 24 '10 at 3:04

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