[DEPRECATED]
This app is too old so it's now deprecated.
I released a new version and it's support Android Oreo now.
Please try it.
(It is NOT compatible with the old app.)
https://play.google.com/store/apps/details?id=com.nagopy.android.fileshortcut

It is an app to create a shortcut to open the file.
You can choose any files such as images, videos, or PDF.

Caution
- You need a separate application that corresponds to the format so you can open the file. For example, PDF files can not be opened without PDF readers such as Adobe Reader.