Hi,
Yes possible to add product image on PLD and can print image in sales order or quotations.
Please follow below steps:
1. Create image type UDF for item master data
2. Attach required product image on item master data.
3. Open PLD through pen icon under sale order
4. Through edit option, add new picture field and use source type--database---Select OITM table and choose added UDF.
Thanks & Regards,
Nagarajan