... postprocessor,¹¹

The dvips program developed by T. Rokicki has full psfig support; it is available via anonymous FTP from labrea.stanford.edu. OzTeX also supports psfig and is available from various ftp sites. Psfig is available from whitechapel.media.mit.edu.

... comment'.²²

See `Appendix J: PostScript File Structuring Conventions' in The PostScript Language Reference Manual