This directory contains the PBMtoPK and PKtoPBM programs. The PBM libraries required to compile these programs are available from expo.lcs.mit.edu in the directory contrib/. The PBM library is the work of Jef Poskanzer (jef@well.sf.ca.us), and PBMtoPK and PKtoPBM are the work of Angus Duggan (ajcd@lfcs.ed.ac.uk), based on programs by Tom Rokicki. AJCD 30/10/91