WWF introduces new PDF-like file format to stop you from printing - 0 views
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Rhiannon Apple on 16 Dec 10New file format .wwf can't be printed to save trees
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Emily Knab on 21 Dec 10weekly 12.21
The Verge: http://www.theverge.com/2014/7/28/5943883/amazon-opens-create-your-own-3d-printing-store Amazon: Amazon opens a 'Create Your Own' 3D-printing store