This program is part of Netpbm(1).
ppmtojpeg was replaced in Netpbm 9.19 (September 2001) by pnmtojpeg(1).
pnmtojpeg is backward compatible with ppmtojpeg except that with PGM or PBM input, it generates JPEG output in the special grayscale format.
This manual page was generated by the Netpbm tool 'makeman' from HTML source. The master documentation is at