Joomla Form Component Change

I use Joomla and the component visforms. Unfortunately there is a problem with the PDF output. If I create a form with it and select the output in a form, the fields in the PDF remain empty where the customer has not entered anything. But I would like this only to be hidden and to be continued in the form under the last entry and no empty fields are displayed.

I want the changes to be made immediately and not in a few days. So only bid if you can do it right away. thanks