The WWF - World Wide Fund Non-Printable Document is not a favorite it is designed to make printing difficult but is difficult to get into. The major computer brands can access the encryption, but it is difficult. It is somewhat of a PDF but the whole document program has not been taken in by all of the parties that feel they should have an opinion. There are many document plans with a major purpose. The V WWF - World Wide Fund Non-Printable Document seems to be working to save the environment by lessening the printing of any documents. It would seem the belief is, if printing is too hard there will be other ways of getting the point across.
Opinions vary with this method of not printing documents. It is unclear what this WWF - World Wide Fund Non-Printable Document is clearly meaning. There are document fund like this program but not as difficult to use. This is not a favorite when use is involved but perhaps for security. Reading this program is not widely used but it was developed by a notable group. The security engineering is noteworthy.