How to translate to dutch?

Hi @il-1,

You can alter the headers like From Address, Billing Address etc via the template customization option under plugin settings > Invoice tab > Customize.

Further customization is available in the premium version.

Were can i translate:
Quantity, Price, Total Price, Subtotal, Shipping, Total Tax and Total?

Hi @il-1,

As mentioned earlier, these customizations are available in the premium version.