Under the contract, which begins with the January 2009 issues, Zebra will manage the repro for Which?, as well as Which? Gardening, Which? Computing and Which? Holiday.

London-based Zebra has managed the prepress for three Which? titles: Which? Money, Which? Car and its Tax Saving Guide supplement, since the beginning of 2007.

Bev Jordan, Which?'s production manager, said: "I need my repro partner to be able to guarantee a level of service in line with the reduced production schedules. I know that Zebra will deliver quality and on time."

The monthly titles have paginations of up to 84pp. The magazine portfolio comprises in excess of 3,000 pages per year.

Zebra declined to comment on the value or length of the contract.

The company recently won a repro contract with The Co-operative magazine.