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.
Currently, it is not possible to edit the pdf itself unless you edit it within a third-party pdf editor.
Additionally, as far as I last knew one of our developers was working on a possible feature for custom pdfs but it is currently still in heavy development. There is no set deadline or timeframe for it and it is not something that I can promise or guarantee just yet.