pk­fix-helper – Make PostScript files ac­ces­si­ble to pk­fix

Pk­fix is a use­ful util­ity for re­plac­ing res­o­lu­tion-de­pen­dent bitmapped fonts in a dvips-pro­duced PostScript file with the cor­re­spond­ing res­o­lu­tion-in­de­pen­dent vec­tor fonts. Un­for­tu­nately, pk­fix needs to parse cer­tain PostScript com­ments that ap­pear only in files pro­duced by dvips ver­sions later than 5.58 (ca. 1996); it fails to work on PostScript files pro­duced by older ver­sions of dvips.
Pk­fix-helper is a pro­gram that at­tempts to in­sert newer-dvips com­ments into an older-dvips PostScript file, thereby mak­ing the file suit­able for pro­cess­ing by pk­fix. pk­fix-helper can some­times pro­cess doc­u­ments fully au­tonomously but does re­quire the user to ver­ify and, if needed, cor­rect its de­ci­sions.