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.
You could be referring to 2 different things. But here they are..
#1 If you meant the submissions PDF-Link, you can see that in the email template of the Autoresponder. It is at the right-side panel, lowest item
#2 If you meant adding/inserting a link to PDF (URL link), you can use the insert/edit link tool of the email editor.
Please refer to the screenshot below for visual guidance.
Hope this help. Let us know if you need further assistance.