ref: ca2fa9596b5d0d893be28c6e8fd8a52a89a0c3c6
dir: /sys/src/cmd/postscript/download/README/
A simple program that scans PostScript files for %%DocumentFonts: comments and prepends requested host resident font files to the input. Written for Unix 4.0 lp. Downloaded fonts are the ones named in the %%DocumentFonts: comment and listed in a special map file (which can be selected using the -m option). See example.map and comments in download.c for examples of map files. By default map files and font files are in *hostfontdir. It's initialized using HOSTDIR (file ../common/path.h).