Here are some things that would be useful additions to groff: ideal preprocessor -mv macros (for typesetting viewgraphs and slides) a deroff that understands long names a page-makeup postprocessor and associated macro package (like pm and -mpm) If you want to work on one of these, you should probably post to gnu.groff.bug (or send email to bug-groff@gnu.org) to see if anyone else has gotten there first.