you want scan document and sabe in the cloud?
i thing the best solution for you, is Google Drive, you can download the software, and create a folder in you computer.
this folder is the sabe to, cloud and you cand setting the scan, to save the document at this folder direct.
here you can see wath is Google Drive and how you can setting this solution...
How to scan documents and photos using Google Drive application for Android devices<REMOVED>