Passing form contact info to a non-infusionsoft page


The structure I have setup is a “3 step” system.
Page 1: Opt in with Name and Email. Then click next.
Page 2: Gather additional and more specific information & upload files
Page 3: Thank you page

This is fine, except Page 2. Infusionsoft doesn’t allow file uploads like I need, but I want to keep things seamless.

So, my question, after Page 1’s infusionsoft form has been submitted and redirects to my page 2, what is the best way to put the name and email from page 1 into a hidden field in a NON infusionsoft form on page 2?