#344 UK Royal Mail Mailmark 2D Barcodes

[Stuart Kirkwood]

TCPDF currently implements the Royal Mail 4-state Customer Code barcode. Royal Mail in addition to the 4-state code now uses a number of 2D Datamatrix codes. It would we really useful for UK users if TCPDF supported the new 2D Mailmark codes as they will be required on a lot of UK mail in the near future. I have attached a Royal Mail specification document. If you need more information then please message me. Thanks for providing such a great product.