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.
If you are referring to the PDF submission saved in the Google Drive integration, then you can use the Unique ID widget, here's a guide about it: https://www.jotform.com/help/79-How-to-Add-Custom-Unique-IDs-to-your-Form-Submissions
Here's an example:
1. Here I setup my unique ID widget.
2. I then integrated Google Drive in my form. Here's a guide on how to do that: https://www.jotform.com/help/192-How-to-Integrate-a-Form-with-Google-Drive
Below is a screenshot, you'll see the folder path. You can use the unique ID widget as the basis of the file name:
3. Here's my test submission:
4. Here's how I received it. You'll see that the submission folder name uses the unique ID widget value, the PDF submission will also have the same name.
I hope that helps.