Change Output of Labels?

Hi!
The easiest way to do this is with our Premium Templates extension which lets you do this directly from the settings:

In the free version you can do this with a code snippet:

add_filter( 'wpo_wcpdf_woocommerce_totals', 'wpo_wcpdf_woocommerce_totals_deposit_due', 10, 3 );
function wpo_wcpdf_woocommerce_totals_deposit_due ( $totals, $order, $template_type ) {
	foreach ($totals as $key => $total) {
		if ( $key == 'order_total' ) {
			$totals[$key]['label'] = 'Deposit Due';
		}
	}

	return $totals;
}

I’ll give it a go and let you know how it turns out!