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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
       MERCHANTABILITY  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.