Add custom field to PDF INVOICE

You need to use the method suggested by the invoice plugin developer inorder to display the custom metadata in the invoice.

You can refer the below link for more details:

https://bg.www.ads-software.com/plugins/woocommerce-pdf-invoices/#how%20to%20add%20custom%20fields%2Fmeta-data%20to%20the%20pdf%20invoice%20template%3F

When you create a custom field named your_field in the checkout field editor plugin, the plugin will save the submitted field value with the key name as your_field. So inorder to display your_field value in the invoice template, you need to add the below code.

<?php echo BEWPI()->templater()->get_meta( 'your_field' ); ?>

Hope this will help.

Thank you!