Want to get more out of your fax machine or fax modem? 3D Fax from InfoImaging Technologies Inc. (800 966-1140) can convert computer files to a pattern of dots, allowing multiple-page documents to fit on a single sheet. When received by a fax modem or scanned into a computer, InfoImaging software converts the dots back into text or other files. A limited version can be downloaded over the World Wide Web from http://www.infoimaging.com. A commercial version of 3D Fax costs $99.