NAME

       ppm2tiff - create a TIFF file from PPM, PGM and PBM image files

       Synopsis

       ppm2tiff [ options ] [ input.ppm ] output.tif

DESCRIPTION

       ppm2tiff  converts  a  file in the PPM, PGM and PBM image formats to TIFF.  By default, the TIFF image is
       created with  data  samples  packed  (PlanarConfiguration=1),  compressed  with  the  Packbits  algorithm
       (Compression=32773),  and  with  each  strip  no  more  than  8  kilobytes.  These characteristics can be
       overridden, or explicitly specified with the options described below.

       If  the  PPM  file  contains  greyscale  data,  then  the  PhotometricInterpretation  tag  is  set  to  1
       (min-is-black), otherwise it is set to 2 (RGB).

       If no PPM file is specified on the command line, ppm2tiff will read from the standard input.

OPTIONS

       -c compress
              Specify  a  compression  scheme  to  use  when  writing image data: -c none for no compression, -c
              packbits for PackBits compression (will be used  by  default),  -c  lzw  for  Lempel-Ziv  &  Welch
              compression,  -c  jpeg  for  baseline  JPEG compression, -c zip for Deflate compression, -c g3 for
              CCITT Group 3 (T.4) compression, and -c g4 for CCITT Group 4 (T.6) compression.

       -r striprows
              Write data with a specified number of rows per strip; by  default  the  number  of  rows/strip  is
              selected so that each strip is approximately 8 kilobytes.

       -R resolution
              Mark the resultant image to have the specified X and Y resolution (in dots/inch).

SEE ALSO

       tiffinfo (1), tiffcp (1), tiffmedian (1), libtiff (3tiff)

AUTHOR

       LibTIFF contributors

COPYRIGHT

       1988-2022, LibTIFF contributors

4.7                                               Apr 30, 2025                                       PPM2TIFF(1)