Hi! To change that label you have to use the filter wpo_wcpdf_woocommerce_totals, which filters an array of the totals. The total and subtotal itself are not editable directly inside invoice.php because they are dynamic and this printed based on the available data (just like the order items).

Here’s the basic setup for this filter:

add_filter( 'wpo_wcpdf_woocommerce_totals', 'wpo_wcpdf_woocommerce_totals_custom', 10, 3 );
function wpo_wcpdf_woocommerce_totals_custom( $totals, $order, $document_type ) {
    // Do your magic here
    return $totals;
}

Much easier is the Premium Templates extension, which lets you do this in a drag & drop interface and also add much more informations (split out taxes, change prices to include or exclude tax, etc).

Hope that helps!
Ewout

Yes!

By the way, hiding the subtotal in the free version is also possible with CSS:

.totals.cart_subtotal { display:none; }

Hope that helps!
Ewout

Hi Matt, this is the same in both the Simple and the premium templates:
https://docs.wpovernight.com/woocommerce-pdf-invoices-packing-slips/change-the-document-title/

If you have any other questions regarding the premium templates, please email us at support@wpovernight.com instead. WordPress.org does not allow us to use these forums for premium support.

• This reply was modified 7 years, 1 month ago by Ewout.

It’s possible your server is blocking remote images. If you use a server path instead it will not have this issue.
Inserting images
If you don’t know the path to your site on the server, you can check the Status tab of the PDF invoice settings for reference. Copy the first part from the ‘Central temporary plugin folder’, up to /wp-content/ (depending on where the file is of course).