How do I create a PDF form?

I have a form created on Jotform. I want this form to be available in electronic form, where it can be completed electronically and submitted. How do I go about this?

You could indeed create a PDF fillable form, please check this guide that will help you doing so: https://www.jotform.com/help/212-How-to-Create-a-PDF-Form 

However, please note that there are some elements that do not work with PDF forms, in order to get more details about this, please check this guide: https://www.jotform.com/help/212-How-to-Create-a-PDF-Form 

I hope this helps.