Create custom pdf on checkout

-- url of the page with the problem -- : www.reddingboot3.be
-- HikaShop version -- : 4.2.3
-- Joomla version -- : 3.9.18
-- PHP version -- : 7.4.5
-- Browser(s) name and version -- : Chrome 81.0.4044.129

Hello,

We want to use hika-shop as a fund raising tool. People can choose to sponsor an item to be restored of a historic lifeboat. One of the perks every sponsor receives is a certificate upon which is mentioned his name, the amount he sponsored and the name of the item.
Now I'am downloading the orders to create a pdf- certificate manualy.

Is there way to create on checkout a pdf with our own design and name, item and total amount on checkout, ready for download? (f.i. with a download link in the confirmation mail, or as attachment of the order confirmation mail. (only when payed online). With banktransfert the download link should become available after we received the payment.

Is this possible?

thank you, i' bought hikashop serial.
I see only the attachserial and pdfserial plugin. Which of them should I use.

The template for the pdf should be as in attach. The file has been created with scribus. (dtp). Only name and product should be added.