In the Admin Dashboard, navigate to the Paperwork tab on the left sidebar. In the top right corner, click the Download drop-down menu.
Select whether you'd like to download:
All paperwork: downloads a zip file of every submitted document on the forms, documents, and file requests tabs. The zip file has a folder for each paperwork type.
All forms: downloads a zip file of form responses per form
All PDF documents: downloads a zip file of every submitted fillable PDF
All file requests: downloads a zip file of every submitted file request. Every upload has a unique file within the folder