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TIFF is the Tag Image File Format. It is file format suitable for archiving image data. There is a portable, freely available library and utilities available via ftp from sgi.com in /graphics/tiff. As aspect of TIFF that makes it interesting to this discussion is that there is a defined "fax" format in the space of TIFF possibilities. What this format does is simply adds some TIFF tags to the Group 3 (or 4) FAX data, leaving the data essentially unchanged. By stripping fax padding or using Group 4 (2d) encoding, the resulting file may be actually be slightly smaller. TIFF aware utilities (of which there are many) can then handle the data. The advantage is that the image data goes through a minumum transformation pipeline going from g3 to tiff to whatever. Here are some useful pipe commands using the tiff package. % fax2tiff -M -o 2020.tif 2020.g3 Converts to tiff from g3. The '-M' option is required (and took me a long time to figure out :-). _From here you can use xv. Printing the tiff file to postscript there are at least 2 options: % tiff2ps 2020.tif | lpr or % fax2ps fax2ps.tif | lpr The latter form is optimized to the FAX tiff file (like you produced) and uses a PostScript compression scheme to reduce the amount of data which goes over the wire from your host computer to your printer by quite a bit: For a typical file 137649 byte (fax tif) input file, from 967921 bytes to 347835 bytes. This can be a big win if your printer is on a serial port. If you have an ethernet printer, the additional compute overhead (on your host, AND on your printer) probably makes this the PostScript compression not such a good idea. Have Fun. -glenn