How can I add a button to the user attach file with the form?
Hi there! So while it’s not possible to let visitors attach files to an Unbounce form at this time, you could always embed a third party form that has the ability to attach files.
If you have a WordPress website, here’s a workaround from another member of the community that involves a third party form tool called Gravity Forms: Upload Files (Images, Documents) into the Form
You can also explore form tools such as Typeform and JotForm, which allow uploading files, but in some cases it requires a paid plan. These types of forms can then be embedded onto an Unbounce page.