With Paperform, your customers and visitors can have their form data auto-saved, so they can return and complete the form on the same device at their convenience.
This is helpful because:
To activate this for your forms, go to Configure → Form Behaviour and toggle on “Automatic save and resume later."
This tells the visitor's browser to save answers locally until a form is submitted. They must return to the form using the same device and browser (excluding incognito/private windows) in order to see their previous answers.
force=1to give your pre-filling precedence over auto-saved answers.