Hi @shaar7,
Are you maybe checking your changes in an already generated invoice?
Please note that PDF invoices created previously are not updated when you change the plugin’s settings in a latter stage, therefore, if you change your settings for the shop or the document (like the shop footer), the previous invoices will not be affected, displaying nothing (if there was not a shop footer set at the moment of its generation) or the previous value for the setting, if it was different.
In brief, we store the settings for both, document and shop, per-order basis for historical reasons. For instance, if you change your shop address in the future, it should not affect old PDF invoices that you generated when your store was located in the old address.
That said, when you’re playing with the plugin configuration, you can activate the “Test mode” temporarily, under WooCommerce > PDF Invoices > General > Test mode, to see your changes immediately printed in a testing invoice, for instance. Just remember that this will also affect actual invoices.
See: Show PDF documents with the latest settings.
