Save as WWF, Save a Tree.

The WWF format is a PDF which cannot be printed out. Clever, huh? Now you can keep others from killing trees.

The idea is simple. If you want to send a PDF to someone but you feel bad if they print it out, WWF has the answer for you.

The WWF format is a small programme which lets you save your files in a unprintable way. You can download the programme here.

There are quite some other possibilities to impose a certain sustainable lifestyle on the people surrouding you. What about Continue reading

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