This is not something we currently support but you can add or vote on feature ideas:
If you need to add a new idea click "Create an idea" under "Actions" in the top right.
This is a feature that is absolutely necessary for my Business and will prevent us from continuing to use your product. If your team has put the option of having show/hide rules in regards to what questions appear to the applicant / end user, and further allows empty fields to be removed from the applicant's receipt email, how can you honestly justify not giving that feature to the form designers / your customers as well? It renders the good looking Adobe PDF form that we would like to generate to give directtly to clients unusable. Seems like an easy enough fix to me.