Invoice Button

[Homer Aldea]

How do I add an invoice button that will view the invoice in the payment tab after the customer finished ordering?

[jgamio]

Do you mean before to do the payment ?

[Homer Aldea]

Thanks for the reply. I meant after ordering the products. A button where you can view the invoice of your last order

[jgamio]

Check these https://www.prestashop.com/forums/topic/90494-link-to-download-pdf-invoice/

[Homer Aldea]

Thanks. But the link you gave is not applicable for this. I just want to add a "View Invoice" button that let the customer view his/her invoice in the next tab of the browser in step 5 after they confirmed their order. My mode of payment is only Cash On Delivery. Please see the above screenshot. I already added a button "View Invoice" and I just want to happen is if you click the button, the customer can view his/her invoice in the next tab. Thanks. Greatly Appreciated. 

[jgamio]

Is the same but let me explain

You need a secure code inside the link to be able to print the invoice, if you dont have that everybody can print the invoices

You can't do it without changing the payment module