JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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.
I presume that you are looking for the widget that will allow you to capture the signatures on your PDF. For that we would suggest E-signature widget.
Once you export your form as the PDF, it will now be able to capture the signature, if opened in the full featured PDF viewer.
Do let us know if you happen to have any further questions or if the above is not what you meant and we would be happy to assist.