.TH JPEGINFO 1 "10 Dec 2002" 
.UC 4 
.SH NAME 
jpeginfo \- prints
information and tests integrity of JPEG/JFIF files.  

.SH SYNOPSIS 
.B jpeginfo 
[ 
.B options 
] [ 
.B filenames 
] 

.SH DESCRIPTION 
.I 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.


.SH OPTIONS
.PP
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
.I jpeginfo
are the following:
.TP 0.6i
.B -c, --check
Check files also for errors. (default is just to read the headers).
.TP 0.6i
.B -C, --comments
Display file comments (from COM markers).
.TP 0.6i
.B -d, --delete
Delete files that have errors. (default is not to delete any files).
.TP 0.6i
.B -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.
.TP 0.6i
.B -h, --help
Display short usage information and exits.
.TP 0.6i
.B -5, --md5
Calculates MD5 checksum for each file. 
.TP 0.6i
.B -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.
.TP 0.6i
.B -l, --lsstyle
Uses alternate listing format (ls -l style).
.TP 0.6i
.B -v, --verbose
Enables verbose mode (positively chatty).
.TP 0.6i
.B --version
Displays program version.
.TP 0.6i
.B -q, --quiet
Quiet mode, output just the jpeg infos.
.TP 0.6i
.B -m<mode>, --mode=<mode>
Sets the delete mode, meaningful only when used with 
.I
-d
flag. 
.I Mode
can be one of the following:
.RS
.TP
.B all
files containing any type of errors/warnings, not necessarily preventing 
the decoding. (default)
.TP
.B erronly
only files with serious errors (ie. cannot be decoded at all).


.SH BUGS
None, so far :-)

.SH "SEE ALSO" 
jpegoptim(1)

.SH AUTHOR
Timo Kokkonen (tjko@jyu.fi)

.SH 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.