Unprintable WWF File Format Goes Viral To Save Trees

Every year millions of trees are cut down to produce the paper that all of us use to print out emails, attachments, documents and books unnecessarily. How can we save trees and cut down on unnecessary printing and paper waste? Why not go straight to the source and create files that are unprintable? That way nobody will be able to waste paper printing them out! A new viral video is introducing WWF, a new green file format that cannot be printed out, guaranteeing that not a single tree will have to die on your account.