grep help Post: 67958

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tiffutil

TIFFUTIL(1)						    BSD General Commands Manual 					       TIFFUTIL(1)

NAME

     tiffutil - manipulates tiff files

SYNOPSIS

     tiffutil <option> [<arguments>] [-out <outfile>]

DESCRIPTION

     tiffutil lets you manipulate TIFF files. The list of options (also available by running the program without any options) follows:

     tiffutil -none		infile			[-out outfile]
	      -lzw		infile			[-out outfile]
	      -packbits 	infile			[-out outfile]
	      -cat		infile1 [infile2 ...]	[-out outfile]
	      -catnosizecheck	infile1 [infile2 ...]	[-out outfile]
	      -cathidpicheck	infile1 [infile2 ...]	[-out outfile]
	      -extract		num infile		[-out outfile]
	      -info		infile
	      -verboseinfo	infile
	      -dump		infile

     -none, -lzw, and -packbits options specify the compression format to be applied to the images in the TIFF file.  -none specifies no compres-
     sion; -packbits specifies PackBits compression; -lzw specifies standard Lempel-Ziv & Welch compression (no prediction scheme).

     -cat allows combining multiple TIFF files into one.  The images are copied without any change in tag values. If the real sizes (pixel size
     divided by dpi) of the images being combined are not the same, a warning will be generated. This makes sure that NSImage can successfully
     choose the right size image out of the generated TIFF file. Use -catnosizecheck to bypass the size check.

     -cathidpicheck can be used to write an output file conforming to Apple's guidelines for resolution independent bitmap images, and will gener-
     ate warnings if the supplied images do not have the recommended size relationship. For best results, ensure that the larger file has a file-
     name of the form <basename>@2x.png.

     -extract allows extracting an individual image from a TIFF file; specify num = 0 for the first image in the file.

     -info prints information about TIFF images. -verboseinfo is the same, except most of the tables are displayed in full. -dump simply lists all
     of the tags in the file without trying to interpret them; it is handy when trying to figure out why a TIFF file won't load or display prop-
     erly.

     For options which write images out, the output goes to "out.tiff" unless an output file name is specified after a -out keyword.  This keyword
     and the file must be the last items on the command line. -info, -verboseinfo, and -dump write their output to the standard output.

     If there are multiple images in a TIFF file the specified operation will be performed on all of them.

     SECURITY NOTE: This version of tiffutil SHOULD NOT be used with untrusted files.

CREDITS

     Parts of tiffutil were based on the freely distributable "tiffcp" and "tiffinfo" programs written by Sam Leffler and made available with v3.0
     of his excellent TIFF library. The TIFF library and the tiffcp and tiffinfo programs are:
       Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler
       Copyright (c) 1991, 1992 Silicon Graphics, Inc.

macOS								 September 2, 2010							     macOS