Customize Invoice Template

1. Create directory under your active theme directory and name it “wpcargo”. (e.g. child-theme/wpcargo/ ).
2. Create a new file and name it invoice.tpl.php under the theme_folder/wpcargo/ file directory. Note: This will return an empty template.
3. If you just need a little changes in your template, you can copy below code and update desired section or you can create a new template based on your desired design.

Default invoice template layout

<?php do_action( 'wpcfe_before_invoice_content', $shipmentDetails ); ?>
<table style="width:100%;">
    <?php do_action( 'wpcfe_start_invoice_section', $shipmentDetails ); ?>
    <tr>
        <td style="width:50%; vertical-align: middle !important; text-align: center !important;" class="border-bottom">
            <?php do_action( 'wpcfe_invoice_site_info', $shipmentDetails ); ?>
        </td>
        <td style="width:50%; vertical-align: middle !important; text-align: center !important;" class="border-bottom">
            <?php do_action( 'wpcfe_invoice_barcode_info', $shipmentDetails ); ?>
        </td>
    </tr>
    <?php do_action( 'wpcfe_middle_invoice_section', $shipmentDetails ); ?>
    <tr>
        <td style="width:50%;" class="space-topbottom">
            <?php do_action( 'wpcfe_invoice_shipper_info', $shipmentDetails ); ?>
        </td>
        <td style="width:50%;" class="space-topbottom">
            <?php do_action( 'wpcfe_invoice_receiver_info', $shipmentDetails ); ?>
        </td>
    </tr>
    <?php do_action( 'wpcfe_end_invoice_section', $shipmentDetails ); ?>
</table>
<?php do_action( 'wpcfe_after_invoice_content', $shipmentDetails ); ?>

Note:

If you have Invoice Addon installed and activated, copy and paste the following code in the functions.php of your current theme

remove_filter( 'wpcfe_print_template_path_invoice', 'wpcinvoice_template_path_callback', 999 );