NAME

       exiftran - transform digital camera jpeg images

SYNOPSIS

       exiftran [options] file1 file2 ... fileN

       exiftran -i [transform options] [others options] file1 file2 ... fileN

       exiftran -o outputfile [transform options] [other options] inputfile

       exiftran -d file1 file2 ... fileN > exifinfo

DESCRIPTION

       Exiftran  is a command line utility to transform digital camera jpeg images. It can do lossless rotations
       like jpegtran(1), but unlike jpegtran(1) it cares about the EXIF data: It can rotate images automatically
       by  checking  the  exif  orientation  tag;  it  updates the exif informations if needed (image dimension,
       orientation); it also rotates the exif thumbnail. It can process multiple images at once.

TRANSFORM OPTIONS

       -a     Automatic (using exif orientation tag).

       -9     Rotate by 90 degrees clockwise.

       -1     Rotate by 180 degrees clockwise.

       -2     Rotate by 270 degrees clockwise.

       -f     Mirror image vertically (top / bottom).

       -F     Mirror image horizontally (left to right).

       -t     Transpose (across UL-to-LR corner).

       -T     Transverse (across UR-to-LL corner).

       -nt    Don't transform exif thumbnail.

       -ni    Don't transform jpeg image. You might need this or the -nt option to  fixup  things  in  case  you
              transformed  the  image  with some utility which ignores the exif thumbnail. Just generating a new
              thumbnail with -g is another way to fix it.

       -no    Don't  update  the  orientation  tag.  By  default  exiftran  sets  the  orientation  to  "1"  (no
              transformation  needed)  to  avoid other exif-aware applications try to rotate the already-rotated
              image again.

       -np    Don't pare lost edges. By default exiftran don't preserve image size of the  images  that  do  not
              meet  a  multiple  of  8  pixels. He prefers to cut a strip of a few pixels rather than offering a
              damaged image. Use this option if you want them all the same.

OTHER OPTIONS

       -h     Print a short help text.

       -d     Dump exif data for the file(s).

       -c text
              Set jpeg comment tag to text.

       -g     (re)generate exif thumbnail.

       -o file
              Specify output file. Only one input file is allowed in this mode.

       -i     Enable in-place editing of the images.  Exiftran  allows  multiple  input  files  then.  You  must
              specify  either  this  option  or  a output file with -o for all operations which modify the image
              (i.e.  everything but -d right now).

       -b     Create a backup file when doing in-place editing (imply -i).

       -p     Preserve timestamps (atime + mtime) when doing in-place editing (imply -i).

EXAMPLES

       Autorotate all jpeg files in the current directory:

              exiftran -ai *.jpeg

SEE ALSO

       exif(1), exiftags(1), jpegtran(1)

AUTHOR

       Gerd Hoffmann <gerd@kraxel.org>

COPYRIGHT

       Copyright (c) 2002-2012 Gerd Hoffmann <gerd@kraxel.org>

       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.