To make Adobe your default PDF reader:
- Find a PDF file that you would like to open in Adobe Reader.
- Right click on the file, go to the “Open With >” menu option.
- Click on the “Choose another app” option at the bottom of the menu.
- Click on the Adobe icon in the list of apps so that it is highlighted, and then tick the box that says “Always use this app to open .pdf files”.
- Click OK.