Whilst I am unable to find any example documents to test my theory with, the website says:
WWF documents can be opened with most programs that can open PDFs
I suspect that ultimately Evince (the default PDF reader in Ubuntu) can already read these files. If you can get your hands on a
.wff, try renaming it to
.pdf, or right click and try Open With "Document Viewer".
Support for the format would probably be fairly easy to implement in Evince, but I can't see anyone having much desire to do to. Two reasons for this:
- Preventing people from printing is the sort of arbitrary restriction that is generally opposed in the Ubuntu and free software community. The PDF file format was intended not to be editable, but we now have tools to edit them...
- The entire file format / campaign appears for the most part gimicky, and most of us are incredibly unlikely to actually encounter such a file.
What is not that unlikely to emerge is "support" for opening these files, but no restrictions on printing.... which kinda defeats the point.