Walker, who has 25 years of experience within the print and direct mail industry, has previously worked at Hunterprint, Waddington and Ledger, and Blackburns.

He said: "I have watched the continued growth and success of 4DM over recent years and feel privileged to have now become part of such a strong and dynamic organisation."

Group sales and marketing director Robin Skinner added: "We are delighted to have attracted this very high-calibre individual to our team.

"Martin brings huge amounts of experience and enthusiasm and will be a great asset to the 4DM business."

The appointment follows Kettering-based 4DM's recent acquisition of two new Xerox 700 digital colour presses.