Customers receive a PDF of their submission after they send it, but it has my old logo on it. How do I change this?

Question:
My customers receive a PDF of their submission after they send it, but it has my old logo on it. How do I change this?

Product:
Wix Editor

What are you trying to achieve:
On our website, customers can use the submission form at the bottom to request our services and get a quote. After they click submit, they recieve an email with a PDF of their submission, but that PDF has our company’s old logo on it. I can’t find anywhere to change the logo, but I can turn off PDF’s altogether.

What have you already tried:
I tried looking at the form submission settings, and ended up just turning off PDF’s completely.

Additional information:
None