Hugh Hefner has decided to stop publishing full-frontal nudity in Playboy magazine.

The 89-year-old media mogul's legendary adult publication - which has printed raunchy pictures of the likes of Marilyn Monroe and Pamela Anderson since its inception 62 years ago - will make a number of changes from March 2016, with the biggest being the move to make provocative pictures of women rated PG-13.

Bosses on the magazine have made the change because of the popularity of online pornography.

Chief executive Scott Flanders explained to the New York Times newspaper: ''That battle has been fought and won.

''You're now one click away from every sex act imaginable for free. And so it's just passé at this juncture.''

The magazine hasn't yet decided whether to continue publishing their famous centrefolds, but other confirmed changes include a ''sex-positive female'' sex columnist, while the target audience will be young employed males.

Mr. Flanders said: ''The difference between us and Vice is that we're going after the guy with a job.''

In August, the Playboy website was given a makeover and made safe to read at work, resulting in younger readers and an increase in web traffic.

Chief content officer of the magazine, Cory Jones, said the redesigned magazine would be more accessible and more intimate.

However, he admitted: ''Twelve-year-old me is very disappointed in current me. But it's the right thing to do.''

Playboy went public in 1971, but was taken private again in 2011 by Hefner and investment firm Rivzi Traverse Management.

The firm owns around 60 per cent, while the publication's founder owns 30 per cent and the remaining shares are held by Playboy management.