How do I clear native PDF viewer as default? ghost touch selected it.
I'm on lollipop.
Edit : screenshots for comment below. I also checked Reset Default Apps in,the Settings menu, but there's only e-mail and messaging.
If It Is ( Google) Drive Pdf Viewer Then :-

Go To settings
App And Storage (Where You Can See Installed App Which Are Downloaded Or Pre Installed )
Select All Tab Where You Can See System Apps
Select Drive ( Triangle Logo With Three Colors Side Green, Yellow, Blue )
Scroll Down And Click On Clear Defaults ( If Not Available Directly Check Permission If Available )