DragonFly On-Line Manual Pages

EXIFTRAN(1)          Transform digital camera jpeg images          EXIFTRAN(1)

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.

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 inplace 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 inplace editing (imply -i).

       -p     Preserve timestamps (atime + mtime) when doing inplace 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.

EXIFTRAN 2.08             (c) 2002-2012 Gerd Hoffmann              EXIFTRAN(1)