Can we send a PO print to buyer who is assigned as default buyer in Item through mail ?

We have a requirement on PO Print PDF mail communication to item buyer.
A DFF is created in line level as "Item Buyer" and this field will fetch the value from the Item Buyer in Item level, if there is no buyer assigned to that specific item selected in line then the original buyer who is creating the PO has capability to select a buyer from LOV.
Our client requirement is to send a PO Print to line Item buyer through Mail instead of sending the PO print to header buyer. Is there any way to achieve this requirement.