[otrs] Sending the PDF Print of a Ticket to costumer automatically when the state is change to closed

Hello, I'm new to OTRS and I'm exploring the possibility of using it at my company. My question is the following: is there a way of sending the PDF Print of a ticket to the associated costumer when the state is changed to closed via a custom job (if there is such a thing) executed by the Generic Agent? I am aware that there is an OTRS API but my Perl knowledge is close to none. I'm using version 2.4. Best Regards, Filipe Carreira