Unifaun - Small Labels for PUE

functions.php

<?php
/**
 * @snippet       WooCommerce - Sets size of shippinglabel to 107x72 (thermo-brev3)
 * @author        Redlight Media AB / Christopher Hedqvist
 * @compatible    WooCommerce 4.4.0
 */
function redlight_unifaun_pacsoft_pdf_label( $pdf_config, $order ) {
    if( 'Brev i posten' === $order->get_shipping_method() || 'Fri frakt' === $order->get_shipping_method() || 'Free delivery' === $order->get_shipping_method() || 'Postage' === $order->get_shipping_method() ){
        $pdf_config['target1Media'] = 'thermo-brev3';
    }
    
    return $pdf_config;
}
add_filter('ac_wc_unifaun_shipment_pdf_config_data', 'redlight_unifaun_pacsoft_pdf_label', 10, 2 );