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.
Create your form, then create an Autoresponder email for your form:
Include your PDF download link in the Autoresponder email. Each time someone fills out the form, they will be sent your download link.