JPEGINFO(1)						      General Commands Manual						       JPEGINFO(1)

NAME

       jpeginfo - prints information and tests integrity of JPEG/JFIF files.

SYNOPSIS

       jpeginfo [ options ] [ filenames ]

DESCRIPTION

       jpeginfo  is  used to generate informative listings of jpeg files, and also to check jpeg files for errors. Program also supports automatic
       deletion of broken jpegs.

OPTIONS

       Options may be either the traditional POSIX one letter options, or the GNU style long options.  POSIX style options  start  with  a  single
       ``-'', while GNU long options start with ``--''.

       Options offered by jpeginfo are the following:

       -c, --check
	     Check files also for errors. (default is just to read the headers).

       -C, --comments
	     Display file comments (from COM markers).

       -d, --delete
	     Delete files that have errors. (default is not to delete any files).

       -f<filename>, --file<filename>
	     Read  filenames to process from given file. To use standard input (stdin) use '-' as a filename. This is alternative to default where
	     filenames are given as parameters to the program.

       -h, --help
	     Display short usage information and exits.

       -5, --md5
	     Calculates MD5 checksum for each file.

       -i, --info
	     Displays even more information about each picture. Prints image  coding  (Huffman/Arithmetic),  density  (in  dpi/dpc),  and  whether
	     CCIR601 sampling was used or not.

       -l, --lsstyle
	     Uses alternate listing format (ls -l style).

       -v, --verbose
	     Enables verbose mode (positively chatty).

       --version
	     Displays program version.

       -q, --quiet
	     Quiet mode, output just the jpeg infos.

       -m<mode>, --mode=<mode>
	     Sets the delete mode, meaningful only when used with -d flag.  Mode can be one of the following:

	     all    files containing any type of errors/warnings, not necessarily preventing the decoding. (default)

	     erronly
		    only files with serious errors (ie. cannot be decoded at all).

BUGS

       None, so far :-)

SEE ALSO

       jpegoptim(1)

AUTHOR

       Timo Kokkonen (tjko@jyu.fi)

COPYING

       Copyright (C) 1996-1998	Timo Kokkonen

       This  program  is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;  without  even  the  implied	warranty  of  MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
	You  should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

4th Berkeley Distribution					    10 Dec 2002 						       JPEGINFO(1)