Can't Remove Message Field

I’m trying to create a form which when filled will automatically download a PDF. I can’t remove the message field in the form. I only want the name and email.

Does anyone have a fix for this?

One of the many form plugins will be able to do this. The built in form module wont be able to, it isn’t designed to do anything like that.

Another option could be the subscribe form and when you get a signup you send the PDF attached to a welcome email or something.