Setting the Default PDF editor on macOS
Students, faculty, and staff can use Adobe Reader on their Mac computers.
Setting Adobe Reader as Your Default PDF Reader
To use Adobe Reader for Mac, you need to set Adobe Reader as the default reader for PDFs on your computer.
Right-click a document.
Note: The document must be a relevant file type. In this case, you should be searching for a document with the filetype PDF.Select Get info.
Click the Open with section if it is not already expanded.
Select the app you would like to be your default PDF editor.
Click Change all.
Confirm your change when prompted to do so.