You can easily change the default PDF viewer used on your Mac. The option to change your PDF viewer opens when you right-click on a PDF on your computer and select "Get Info." The default PDF viewer ...

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may want ...

In OS X, all file types have a default application that opens when you double click on them. If you double click on a PDF file or a PNG file, chances are that your Mac will open it in Preview, Apple’s ...