Hi,
The invoice and shipping invoice use the same layout file.
If you're using the PDF invoice plugin, then you want to modify the file plugins/hikashop/attachinvoice/attachinvoice/invoice.php
If you want to add text only for the shipping invoice, you can add such code near the bottom:
Code:
<?php
if($this->shipping_invoice){
echo 'My text for shipping invoice only.';
}
?>
