In the system, it is possible to change the name of the Buyer field on invoices.

To do this, go to Settings> Account Settings> Print settings and in the Customize print with CSS field, enter the following code:

}
@media all{ 
span.buyer {
color: #fff;
font-size: 1px; 
}
span.buyer::before {
color: #333;
content: "Buyer";
font-size: 13px;
font-weight: bold;
}