Remember you can always open a specific PDF file within Adobe Reader, if you’d change your mind. Hit Change All to set all PDFs to open with Preview.In the Get Info dialog box that opens next, use the dropdown menu of applications under Open With to select Preview.Click on any PDF file in the Finder to select it.How can I open files with Preview instead of Adobe? 1. If you’re not convinced, those user-friendly annotation tools might make you change your mind. Using Preview is recommended as it’s both faster and more stable than Adobe. If you hit the Yes button, however, any time you click on a PDF, it will open in Adobe Reader. Many websites direct you to use Adobe Acrobat Reader to open PDFs, that’s true. Just launch Adobe on your Mac and you’ll see that bold prompt asking if you want to set it as the default PDF viewer. Preview comes as the default PDF viewer in Mac OS X. You aren’t the only one looking for a way to open files with Preview instead of Adobe. Home › How to › How to open files with Preview instead of Adobe