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Since Safari 7.0 which was introduced yesterday with OS X Mavericks the little terminal hack

defaults write WebKitOmitPDFSupport -bool YES

doesn't work anymore (at least not for me).

Once you use the Terminal hack, the PDF is shown in binary/ascii-format in a new tab of Safari (like if you would open the file with TextEdit instead of an arbitrary PDF reader):

content of pdf in safari

Any suggestions how to achieve the desired behavior anyway?

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

defaults write WebKitOmitPDFSupport -bool NO
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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.

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

  1. Type in

    defaults write WebKitOmitPDFSupport -bool YES

    This disables pdf support in Safari.

  2. Restart Safari

  3. Type in Terminal app:

    defaults write WebKitOmitPDFSupport -bool NO

    This enables pdf support in Safari.

  4. Restart Safari and reload pdf page.

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