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.
Are you referring to the form width and height? In the form builder there's a form width properties that you can adjust and if you want to set the height of the form you can use the iframe embed code and increase the width and heigth.
If using an iframe you can adjust the width and heigth. Please see the highlighted sample below:
<iframe id="JotFormIFrame" onload="window.parent.scrollTo(0,0)" allowtransparency="true" src="yourformURL" frameborder="0" style="width:100%; height:2840px; border:none;" scrolling="no"></iframe>
If you have questions just let us know here.