Natural Language Forms Similar to a Fillable PDF

Is there a way to create a form that behaves like a fillable PDF? I believe these are called natural language forms. The person would then receive the final formatted PDF.

I know there’s a way to create a PDF and have the form fields mapped to the PDF, but the drawback is the person doesn’t get to see the actual look of the final document as they would if filling in a fillable PDF, for example.

If this isn’t possible with Gravity forms or Gravity Forms addons, If you know of another system that could do this, I’d appreciate the tip. Thanks! Pat