This program is part of Netpbm(1).
pnminterp was replaced in Netpbm 9.21 (December 2001) by pamstretch(1).
pamstretch is backward compatible with pnminterp, but also recognizes PAM input, including that with a transparency channel.
This manual page was generated by the Netpbm tool 'makeman' from HTML source. The master documentation is at