The WWF Organisation is one of the most important environmental organisations in the world. For 50 years the WWF has pursued one goal: to rescue the rainforests. With this partner we wanted to raise this important issue. That’s why we invented the world’s first green file format: The .wwf. A file format that simply cannot be printed out.

After just four weeks, the website had already welcomed 200,000 visitors from 183 countries, and the software had been downloaded over 30,000 times. On Facebook we've got over 10,000 friends. Just a few days after the campaign was launched, the WWF was THE topic of conversation in the news, in tweets and on blogs across the world.