woocommerce pdf voucher - Add Custom Pdf size

woo-vou-custom-pdf-size.php

<?php 

// For add custom PDF
function woo_vou_add_custom_pdf_sizes( $pdf_sizes = array() ) {
	
	$pdf_sizes = array_merge( $pdf_sizes, array( 
						'A_Custom' => array( 
								'width' => 500,
								'height' => 500,
								'fontsize' => 50 
								) 
							)
						);
	
	return $pdf_sizes;
}
add_filter( 'woo_vou_get_pdf_sizes', 'woo_vou_add_custom_pdf_sizes' );