Google Drive is using your application by default to open up PDFs. Obviously this doesn't work very well. How do I change this back to the default Google Drive PDF viewer?
Can you please provide the reason why you need so many permissions?
I understand these permissions:
* View and manage Google Drive files and folders that you have opened to created with this app.
* Add itself to Google Drive
* View and manage its own configuration data in your Google Drive
I don't understand why these permissions are necessary for the app to function:
* View your email address
* View your basic profile info
* View and manage the files in your Google Drive (presumably, this gives permission to ALL files in the user's Google Drive, not just the files and folders that the user has opened or created with the app).