There are many ways to return documents back to organization:
Share local documents: The documents that are locally stored in the ‘Personal’ section of the mobile app can be shared with an export button while being edited. The options include copying to cloud storage, sending by email, printing, and opening in other apps.
Company Drive option allows 2-way sync of files from your company cloud storage to the user app and back.
Upload to storage: ‘Upload to folder’ submit rule allow users to connect to storage and save a document to the designated folder automatically.
Send over email: ‘Send by email’ submit rule allows users to send a document to either predefined or entered email address.
Submit to URL: ‘Submit by HTTP’ submit rule allows automatic sending of a fillable form content to a predefined web address.