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.