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TIFFCMP(1)			     LibTIFF			      TIFFCMP(1)

NAME
     tiffcmp - compare two TIFF files

SYNOPSIS
     tiffcmp [ options ] file1.tif file2.tif

DESCRIPTION
     tiffcmp  compares	the  tags and data in two files created according to the
     Tagged Image File Format, Revision 6.0.  The schemes used	for  compressing
     data  in  each file are immaterial when data are compared-data are compared
     on a scanline-by-scanline basis after decompression.  Most  directory  tags
     are checked; notable exceptions are: GrayResponseCurve, ColorResponseCurve,
     and  ColorMap tags.  Data will not be compared if any of the BitsPerSample,
     SamplesPerPixel, or ImageWidth values are not equal.  By  default,  tiffcmp
     will terminate if it encounters any difference.

OPTIONS
     -l     List each byte of image data that differs between the files.

     -z number
	    List  specified  number of image data bytes that differs between the
	    files.

     -t     Ignore any differences in directory tags.

BUGS
     Tags that are not recognized by the library are not compared; they may also
     generate spurious diagnostics.

     The image data of tiled files is not compared, since the TIFFReadScanline()
     function is used.	An error will be reported for tiled files.

     The pixel and/or sample number reported in differences may be off	in  some
     exotic cases.

SEE ALSO
     pal2rgb (1), tiffinfo (1), tiffcp (1), tiffmedian (1), libtiff (3tiff)

AUTHOR
     LibTIFF contributors

COPYRIGHT
     1988-2025, LibTIFF contributors

4.7				  Sep 11, 2025			      TIFFCMP(1)

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