Open the menu (top left corner) 2. Click settings and choose Advanced 3. In Advanced settings, unstick “Turn on Downloading of PDFs…” 4. Now you can play. This feature works with all browser. Just change the default PDF viewer to “Chrome” How To Stop PDF Downloading In Chrome Disable PDF Download And Save option Open Chrome. Click this link. Click download file. Open the file. Delete the .pdf file. The button on the right will be disabled.