How make Safari 7 open PDF files in Preview instead of opening them in-page?

Just adding support to find an answer to this issue. I suppose in the meantime do this:

defaults write com.apple.Safari WebKitOmitPDFSupport -bool NO

Holding ⌥ alt/option down while clicking it makes it download it. That is with the old hack still marked YES. Not the best solution, but will do for the time being.

For Me this was not enough. I had do de following:

1. Type in Terminal.app:

   defaults write com.apple.Safari WebKitOmitPDFSupport -bool YES
   

   This disables pdf support in Safari.

2. Restart Safari

3. Type in Terminal app:

   defaults write com.apple.Safari WebKitOmitPDFSupport -bool NO
   

   This enables pdf support in Safari.

4. Restart Safari and reload pdf page.