EXIFTAGS(1)EXIFTAGS(1)NAMEexiftags - output the properties contained in a JPEG Exif section
SYNOPSISexiftags [ -acdilquv ] [ -s delim ] [ file ... ]
DESCRIPTION
The exiftags utility parses file or, by default, its standard input,
looking for a JPEG APP1 section containing Exif (Exchangeable Image
File) data. The properties contained in these data are then printed to
the standard output.
Digital cameras typically add Exif data to the image files they pro‐
duce, containing information about the camera and digitized image. The
options described below may be used to control output verbosity and
section formatting.
OPTIONS-a Output camera-specific, image-specific, and verbose properties
contained in the file.
-c Output camera-specific properties contained in the file.
-d Output Exif parse debug information.
-i Output image-specific properties contained in the file.
-l Make lens characteristics image-specific. Useful for higher-end
cameras that have removable lenses (i.e., not "point-and-shoot"
cameras).
-q Suppress output of a property section header.
-s Separate field name and value with the string delim. The
default is ': '.
-u Output unknown or unsupported properties contained in the file.
Also, output invalid properties when debugging information is
requested.
-v Output verbose properties contained in the file.
MAKER NOTES
Some camera manufacturers include a "maker note" section with addi‐
tional information about the camera or image not part of the Exif stan‐
dard. The format of these maker notes varies wildly and manufacturers
are not forthcoming with implementation details. Therefore, exiftags
maker note support is the result of experimentation and reverse engi‐
neering (see below for credits) and incomplete. exiftags is known to
have at least partial support for the following manufacturers' maker
notes:
Asahi/Pentax
Canon
Casio
Fujifilm
Leica
Minolta
Nikon
Olympus
Panasonic
Sanyo
Sigma
If you wish support for additional manufacturers or cameras, please
send any information you have about the data format or, better yet,
patches, and a sample image file to the author. (Though he makes no
promises.)
DIAGNOSTICS
The exiftags utility exits 0 on success, and >0 if an error occurs.
SEE ALSOexifcom(1), exiftime(1)STANDARDS
The exiftags utility was developed using the 2003 draft Exif standard,
version 2.21 (http://tsc.jeita.or.jp/) and the June 1992 TIFF specifi‐
cation, revision 6.0 (http://partners.adobe.com/asn/devel‐
oper/pdfs/tn/TIFF6.pdf).
BUGS
Not all Exif 2.21 properties are supported, due either to the author's
laziness or incomplete information. Maker note support is spotty due
to lack of information.
AUTHOR
The exiftags utility and this man page were written by Eric M. Johnston
<emj@postal.net>. Portions of the utility were developed while refer‐
encing the public domain Jhead utility, version 1.2, by Matthias Wandel
<mwandel@rim.net>. Some maker note support is the result of TsuruZoh
Tachibanaya's compendium (http://www.ba.wakwak.com/~tsuruzoh/Com‐
puter/Digicams/exif-e.html) and its contributers. Minolta maker note
support was contributed by Javier Crespo <jcrespoc@dsland.org>. Pana‐
sonic maker note support was contributed by Tom Hughes <tom@comp‐
ton.nu>.
Special thanks to the following folks for submitting sample camera
files: Bradley Bailey, Kirk Bauer, Marcy Brown, Frank Fortunato, Per
Kristian Hove, Brian Jackson, Stan Jirman, Kaye Kirsch, Meder
Kydyraliev, Kevin Layer, Henrik Levkowetz, Jamie Mayberry, Jason Mon‐
tojo, Nick Reid, Frank Reiff, Christian Schmid, Michael Shostak, Nathan
Treadway, Mathieu Vanasse, Mark Westling, Phillip Wherry, and Christian
Zuckschwerdt.
EXIFTAGS(1)
