Paid mark on invoice

Hi @andremik90,

To add a watermark you need our Premium Templates extension. Please see this documentation page on how to do it: https://docs.wpovernight.com/woocommerce-pdf-invoices-packing-slips/adding-a-watermark-to-pdf-documents/

That said, I would like to ask you to write to us at support@wpovernight.com, as WordPress.org does not allow us to answer pre-sales questions or offer premium support for our paid plugins in these forums.