If you would like a different file name for a PDF then you can change the PDF Filename in the Web Portal by going to Forms > Existing Templates > three dots on the right end of the row > Actions.
In the Actions, you can edit email action that you have set up > scroll to PDF Filename.
Type in what you would like the PDF File name to be. You can also add in the Placeholders (responses from the form content will be populated) by using Ctrl + Space, and selecting the objectname of the field that you would like to appear from the dropdown list.
