I don't know if I follow the issue that you are experiencing? Can you elaborate?
They’re uploading there statements and paystubs and the server is denying the pdf .
This sounds like business logic / integratino code. FusionAuth is an Auth solution and does not directly speak to uploading pdfs. Perhaps this is related to the workflow that you are trying to use and FusionAuth plays a role in authorization?
Thanks,
Josh
FusionAuth