WWF (file format)
Campaign to produce PDF electronic documents that forbid printing / From Wikipedia, the free encyclopedia
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WWF is a modification of the open standard PDF format for document exchange endorsed by the World Wide Fund for Nature (also abbreviated WWF) Germany.[1] The WWF format is promoted as being more environmentally friendly than other comparable document exchange formats (e.g. PDF or DOC) since documents in this format are designed to be more difficult to print. The motivation behind the use of the format is to prevent unnecessary printing of documents. The website claims that the file format will be able to be read by most programs that can open ordinary PDF files.[2] At present, the software for creating WWF files is available for Mac OS X 10.4 and for Windows XP and later.[3] An Open Source equivalent is available for Linux and for Windows XP and later.[4]