WWF hopes file format will save trees.

• Position: GOING GREEN - World Wildlife Federation - Brief article

In an effort to save trees, the World Wildlife Federation (WWF) has released its first-ever file format .WWF.

It is intended to replace the .PDF format and is nearly identical to .PDF in every way, except it does not allow users to print. The goal is fewer files printed, translating to fewer trees cut down. While users can actually still find a way to print .WWF documents, the...