How to scan an image from cloud storages (GoogleDrive, Dropbox, etc.)?

To scan the images from cloud storage (Google Drive, Dropbox, OneDrive, Box, Files, iCloud, etc.), please follow the steps below: 

1. Start scanning. It will show the camera screen in the beginning.
2. Tap the "Files" button in the bottom right corner. 
3. Choose "Image" in the top right corner.
4. Connect to cloud storage. 
5. Tap the image that you want to scan.