NAME

       tiffset - set or unset a field in a TIFF header

SYNOPSIS

       tiffset [ options ] filename.tif

DESCRIPTION

       tiffset  sets  the  value  of  a  TIFF  header to a specified value or removes an existing
       setting.

OPTIONS

       -d dirnumber
              Change the current directory (starting at 0).

       -s tagnumber [ count ] value …
              Set the value of the named tag to the value or values specified.

       -sd diroffset
              Change the current directory by offset.

       -sf tagnumber filename
              Set the value of the tag to the contents of filename.  This option is supported for
              ASCII tags only.

       -u tagnumber
              Unset the tag.

EXAMPLES

       The following example sets the image description tag (270) of a.tif to the contents of the
       file descrip:

          tiffset -sf 270 descrip a.tif

       The following example sets the artist tag (315) of a.tif to the string Anonymous:

          tiffset -s 315 Anonymous a.tif

       This example sets the resolution of the file a.tif to 300 dpi:

          tiffset -s 296 2 a.tif
          tiffset -s 282 300.0 a.tif
          tiffset -s 283 300.0 a.tif

       Set the photometric interpretation of the third page of a.tif to min-is-black (ie. inverts
       it):

          tiffset -d 2 -s 262 1 a.tif

SEE ALSO

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

AUTHOR

       LibTIFF contributors

COPYRIGHT

       1988-2024, LibTIFF contributors