Invoice styling | WordPress.org

Hi @timmx,

Try activating this code snippet in your site to achieve waht you want:

/**
 * PDF Invoices & Packing Slips for WooCommerce:
 * Adds custom styles to the PDF documents
 */
add_action( 'wpo_wcpdf_custom_styles', function( $document_type, $document ) {
		?>
		/* Remove SKU and Weight */
		.sku, .weight {
			display: none;
		}
		/* Reverse the table header colors */
		.order-details thead th {
			color: black;
			background-color: white;
			border-color: #ccc;
		}
		<?php
}, 10, 2 );

If you haven’t worked with code snippets (actions/filters) or functions.php before, read this guide: How to use filters