Yes you can! Once you design and publish a Waiver, Form, or Landing Page you can copy the URL that BrandBot generates for each of these published Apps and attach the URL to a QR Code that can then be scanned by your customers.
As long as the customer uses the same email address to complete the Waiver, Form, or Landing Page checkout that is currently connected to their existing BrandBot Contact profile, the completed document will be stored within the Documents area of their Contact page.