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I have been using Skim for a while as my standard PDF reader. After migrating to a new MacBook Air with Mountain Lion (currently running 10.8.2), I can no longer launch Skim from

This same issue was reported to the Skim community ( ) and closed as invalid, as it was considered a problem with, not Skim.

Does anyone know how to get this to work again?

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I experience the same problem. I upgraded to OS X mountain Lion and I can confirm that opening .pdf attachments with skim fails when done directly from Mail.

The only workaround I know is to first save the .pdf somewhere (for instance the Desktop folder) and then skim works normally again.

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I don't consider saving the PDF and then opening it to be a workable work-around — I hadn't asked the question if it had been… – Mikael Vejdemo-Johansson Dec 19 '12 at 11:59

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