How to tell Chrome which method you would like to view an opened PDF file.
In order to choose another program besides Chrome to view a PDF, a PDF viewer program must be installed on your system.
Ex: Adobe Reader
PDF Reader (Mac)
1. type in chrome://plugins in the URL bar of Google Chrome
2. Disable Chrome PDF Viewer
Done. Now PDF files will be downloaded to your download folder. Depending on your computer’s default PDF program the file may or may not automatically open. You can always double click the file within the downloads folder to view the file.
3. Optional. Enable Adobe Acrobat
(reverse this action if switching back to Chrome PDF Viewer)