What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
You can reduce the height of your form by changing the height of the iFrame to size that you would like, currently it is 887px.
<iframe id="JotFormIFrame" onload="window.parent.scrollTo(0,0)" allowtransparency="true" src="//form.jotformpro.com/form/32655910375255" frameborder="0" style="width:100%; height:887px; border:none;" scrolling="no"></iframe>
You will also need to inject CSS on your form to adust the fields when the height is adjusted. The CSS below worked for me when I tested your form with a height of 645px. Please review this guide for more information on how to inject css.
padding: 0px !important;
width: 100% !important;
width: 85% !important;
width: 75% !important;
I hope this helps! Please let us know if you have any further assistance.