How to create new document type in print management documents type AX 2012 or D365

Refer below link (White paper)

https://www.microsoft.com/en-us/download/confirmation.aspx?id=36049

https://stoneridgesoftware.com/adding-the-payment-advice-to-ax-2012-print-management-part-i/

How to create custom design using print management settings in the standard report in D365

Please follow below link

https://blogs.msdn.microsoft.com/dynamicsaxbi/2017/01/01/how-to-custom-designs-for-business-docs/