I cannot open PDF files with my Mountain Lion system. What APP's do I need?

What Apps do I need  to open PDF files with Mt. Lion installed?

Double-click the PDF and it should open in Preview.

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    That crash is a known bug in Apple's display code.
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    Hi Folks,
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    regards
    Felix

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    Thanks for your help, here in Germany it is already 2 pm so not far from quitting-time ;)

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