Thanks for the fast response. I found the PDF invoice.
But i have a PDF Proforma which only the admin gets via mail.
FYI: This PDF Proforma is containing some custom fields (with the plugin WooCommerce Extra Product Options by themecomplete) which should be displayed in the PDF Proforma.
I want to check the PDF Proforma but dont see it in the backend (only PDF Invoice).
sorry for the questions ??