PPM Format Specification(5) File Formats Manual PPM Format Specification(5) (NAME) ppm - Netpbm (DESCRIPTION) Netpbm(1) . PPM ( ) . . . . . . PPM . PPM PPM < () .>> <> <> ( ) . ( ) <> . (THE FORMAT) . C libnetpbm(1) . PPM PPM . . PPM : o << >> . ppm <> . o ( ). o . o . o . o . o (Maxval) . . o ( ). o . . . . Maxval . . . . . <<>> . ITU-R BT.709 BT.709 . ( ). Maxval CIE D65 ( ). BT.709 (-) PPM . ITU-R BT.709 CCIR 709 . CCIR ITU . CIE Rec. 709 CIE . sRGB . PPM . ?Bpnmgamma?P PPM . PPM <<>> . ?Bpnmgamma?P PPM PPM . <<#>> () PBM(1). ?Bpamdepth?P . (ASCII) . << >> (newline) Line Feed LF . <<>> (whitespace) CR LF TAB VT FF ( ANSI C isspace() ). (Minimal Subset) PPM ?Blibnetpbm?P . . : o 'P6' o ( '50 100') o maxval . . o . ?Bpnmtopnm?P PGM ?Bpnmtopnm?P . ?Bpamdepth?P maxval . PPM (Plain PPM) PPM : PPM <<>> (plain). PPM <<>> (raw) . ?Bpbm?P (1) . : o . o P6 P3 . o ( ) . o . . -- . o . . P3 # feep.ppm 4 4 15 0 0 0 0 0 0 0 0 0 15 0 15 0 0 0 0 15 7 0 0 0 0 0 0 0 0 0 0 0 0 0 15 7 0 0 0 15 0 15 0 0 0 0 0 0 0 0 0 . PPM . (INTERNET MEDIA TYPE) ( MIME content type) PPM IANA ?(CWimage/x-portable-pixmap?P . PNM ?(CWimage/x-portable-anymap?P . (FILE NAME) PPM <<.ppm>> . <> PNM . (COMPATIBILITY) PPM maxval . . . PPM . PPM ( ). (SEE ALSO) pnm(1), pgm(1), pbm(1), pam(1), programs that process PPM(1) (DOCUMENT SOURCE) 'makeman' Netpbm HTML . : http://netpbm.sourceforge.net/doc/ppm.html netpbm documentation 07 November 2025 PPM Format Specification(5)