The project, which was produced by Watford-based print and design agency Creative Place, comprised 81,663 photographs measuring more than a kilometre in length.
The company printed the banner in 10m sections on its Agfa Anapurna M2050 machine on banner material from Amari Digital Supplies.
A certificate from Guinness World Records stated: "The largest composite photograph exhibition consisted of 81,663 photographs and was achieved by Clare Newton (UK) in a project named Jump4London as part of London & Partners' World Record London. It was unveiled in the Excel Centre in London, on 1 June 2012."
The piece shows around 5,000 people jumping and is the product of Jump4London, which aims to have the record in place before the London Olympics.
Agfa Graphics marketing manager Tim Light said: "We are really delighted for Clare, particularly after all the hard work she put in. We are also pleased for the other companies that have played their part in bringing this project to life.
"In particular, The Creative Place gave up many hours of valuable time in order to produce the photograph."
Tweet
Jump4London breaks world's longest photo record
The firm has achieved official Guinness World Record certification for its attempt to produce the world's longest photograph.