WWF

WWF

In order to propagate the printing restriction to protect the environment, the International Fund for Nature (WWF) has released a new file format .wwf. This 'green' format will help create the .wwf file with anti-printing properties and at the end of the file will be an environmental protection propaganda page.

After installing on the machine, the program will be in the form of a virtual printer, if you want to use, open the file and press Ctrl + P (or equivalent) to open the printer selection box, you Select the printer as Save as wwf. You name and choose the location for this .wwf file, although it has a 'strange' format, but the attribute is exactly the same as a .pdf file so you can open it with Foxit Reader and Adobe Reader.

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