Warning: Undefined variable $pdf in /var/www/html/api/templates/pdf/material/price-list.php on line 9

Fatal error: Uncaught Error: Call to a member function SetMargins() on null in /var/www/html/api/templates/pdf/material/price-list.php:9 Stack trace: #0 {main} thrown in /var/www/html/api/templates/pdf/material/price-list.php on line 9