exiv2/src/exiv2.1

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.TH EXIV2 1 "November 13th, 2005"
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.SH NAME
exiv2 \- EXIF/IPTC metadata manipulation tool
.SH SYNOPSIS
.B exiv2
[\fIoptions\fP] [\fIaction\fP] \fIfile\fP ...
.br
.SH DESCRIPTION
.PP
.\" TeX users may be more comfortable with the \fB<whatever>\fP and
.\" \fI<whatever>\fP escape sequences to invode bold face and italics, 
.\" respectively.
.B exiv2
is a program to read and write EXIF/IPTC
metadata. Supported image formats are JPEG, Canon CRW (read only) and
Canon THM.
.SH ACTIONS
The \fIaction\fP argument is only required if there are no
\fIoptions\fP or if it is not clear which action is implied.
.TP
.B pr | print
Print image metadata. This is the default action.
.TP
.B ex | extract
Extract metadata to *.exv and thumbnail image files.
.TP
.B in | insert
Insert metadata from corresponding *.exv files.
Use option \fB\-S\fP \fI.suf\fP to change the suffix of the input files.
.TP
.B rm | delete
Delete image metadata from the files.
.TP
.B ad | adjust
Adjust EXIF timestamps by the given time. This action requires the option
\fB\-a\fP \fItime\fP.
.TP
.B mo | modify
Apply commands to modify (add, set, delete) the EXIF/IPTC metadata of image
files. Requires option \fB\-m\fP or \fB\-M\fP.
.TP
.B mv | rename
Rename files and/or set file timestamps according to the EXIF create
timestamp. The filename format can be set with \fB\-r\fP \fIfmt\fP,
timestamp options are \fB\-t\fP and \fB\-T\fP.
.SH OPTIONS
.TP
.B \-h
Display help and exit.
.TP
.B \-V
Show the program version and exit.
.TP
.B \-v
Be verbose during the program run.
.TP
.B \-k
Preserve file timestamps when updating files (keep). Can be used with
all options which update files. The flag is ignored by read-only
options.
.TP
.B \-t
Set the file timestamp according to the EXIF create timestamp in
addition to renaming the file (overrides \fB\-k\fP). This option is
only used with the 'rename' action.
.TP
.B \-T
Only set the file timestamp according to the EXIF create timestamp, do
not rename the file (overrides \fB\-k\fP). This option is only used
with the 'rename' action.
.TP
.B \-f
Do not prompt before overwriting existing files (force overwrite).
.TP
.B \-F
Do not prompt before renaming files (Force rename). Appends '_1' 
('_2', ...) to the name of the new file.
.TP
.B \-a \fItime\fP
Time adjustment in the format [\-]HH[:MM[:SS]]. This option is only
used with the 'adjust' action. Examples: 1 adds one hour, 1:01 
adds one hour and one minute, \-0:00:30 subtracts 30 seconds.
.TP
.B \-p \fImode\fP
Print mode for the 'print' action. Possible modes are:
.br
s : print a summary of the EXIF metadata (the default)
.br
t : interpreted (translated) EXIF data
.br
v : plain EXIF data values
.br
h : hexdump of the EXIF data
.br
i : IPTC data values
.br
c : JPEG comment
.TP
.B \-d \fItgt\fP
Delete target(s) for the 'delete' action. Possible targets are:
.br
a : all supported metadata (the default)
.br
e : EXIF section
.br
t : EXIF thumbnail only
.br
i : IPTC data
.br
c : JPEG comment
.TP
.B \-i \fItgt\fP
Insert target(s) for the 'insert' action. Possible targets are the same as
those for the \fB\-d\fP option. Only JPEG thumbnails can be inserted, they
need to be named \fIfile\fP\-thumb.jpg.
.TP
.B \-e \fItgt\fP
Extract target(s) for the 'extract' action. Possible targets the same as
those for the \fB\-d\fP option.
.TP
.B \-r \fIfmt\fP
Filename format for the 'rename' action. The format string follows
\fBstrftime\fP(3). Default filename format is %Y%m%d_%H%M%S.
.TP
.B \-m \fIfile\fP
Command file for the modify action.
.TP
.B \-M \fIcmd\fP
Command line for the modify action. The format for the commands is the same
as that of the lines of a command file.
.TP
.B \-l \fIdir\fP
Location (directory) for files to be inserted or extracted.
.TP
.B \-S \fI.suf\fP
Use suffix \fI.suf\fP for source files for insert command.
.SH COMMANDS
Commands for the 'modify' action can be read from a command file, e.g., 
.sp 1
.nf
   exiv2 \-m cmd.txt image.jpg
.fi
.sp 1
or given on the command line, as in
.sp 1
.nf
   exiv2 \-M"add Iptc.Application2.Credit String Mr. Smith" image.jpg
.fi
.sp 1
Note the quotes. Multiple \fB\-m\fP and \fB\-M\fP options can be combined.
.sp 1
When writing EXIF/IPTC metadata, 
.B exiv2 
enforces only a correct
metadata structure. It is possible to write tags with types and values
different from those specified in the standards, duplicate EXIF tags,
undefined tags, or incomplete metadata. While 
.B exiv2 
is able to read
all metadata that it can write, other programs may have difficulties
with images that contain non standard\-conforming metadata.
.SS Command format
The format of a command is
.sp 1
.nf
\fBset | add | del\fP \fIkey\fP [[\fItype\fP] \fIvalue\fP]
.fi
.TP
.B set
Set the \fIvalue\fP of an existing tag with a matching \fIkey\fP or
add the tag.
.TP
.B add
Add a tag (unless \fIkey\fP is a non\-repeatable IPTC key; nothing
prevents you from adding duplicate EXIF tags).
.TP
.B del
Delete a tag (requires only a \fIkey\fP).
.TP
.I key
Exiv2 EXIF or IPTC key.
.TP
.I type
.B Byte | Ascii | Short | Long | Rational | Undefined | SShort | SLong | SRational | Comment
for EXIF keys, and
.br
.B String | Date | Time | Short | Undefined
for IPTC keys.
.sp 1
A default \fItype\fP is used if none is explicitely given. The default
is determined based on \fIkey\fP.
.TP
.I value
The remaining text on the line is the value. It can optionally be
enclosed in double quotes ("\fIvalue\fP").
.sp 1
The format of EXIF \fBComment\fP values includes an optional charset
specification at the beginning:
.sp 1
.B   [charset=Ascii|Jis|Unicode|Undefined ]\fIcomment\fP
.sp 1
.B Undefined 
is used by default if the value doesn't start with a charset
definition.
.sp 1
The format for IPTC \fBDate\fP values is YYYY\-MM\-DD (year, month, day)
that for IPTC \fBTime\fP values is HH:MM:SS+|\-HH:MM, where HH:MM:SS
refers to local hour, minute and seconds and +|\-HH:MM refers to hours
and minutes ahead or behind Universal Coordinated Time (+|\- means
either a + or a \- sign is required).
.SS Command file format
Empty lines and lines starting with \fB#\fP in a command file are
ignored (comments). Remaining lines are commands as described above.
.SH EXAMPLES
.TP
exiv2 *.jpg
Prints a summary of the EXIF information for all JPEG files in the directory.
.TP
exiv2 -pi image.jpg
Prints the IPTC metadata of the image.
.TP
exiv2 rename image.jpg
Renames image.jpg (taken on 13\-Nov\-05 at 22:58:31) to 20051113_225831.jpg
.TP
exiv2 ex img1.jpg img2.jpg
Extracts metadata from the two files into files img1.exv and img2.exv.
.TP
exiv2 \-et img1.jpg img2.jpg
Extracts the EXIF thumbnails from the two files into img1\-thumb.jpg
and img2\-thumb.jpg.
.TP
exiv2 \-it img1.jpg img2.jpg
Inserts (copies) metadata from img1.exv to img1.jpg and from img2.exv
to img2.jpg.
.TP
.nf
exiv2 \-M"set Exif.Photo.UserComment charset=Ascii New EXIF comment" image.jpg
.fi
Sets the EXIF comment to an ASCII string.
.TP
.nf
exiv2 \-M"set Exif.GPSInfo.GPSLatitude 4/1 15/1 33/1" \\
\-M"set Exif.GPSInfo.GPSLatitudeRef N" image.jpg
.fi
Sets the latitude to 4 degrees, 15 minutes and 33 seconds north. The
EXIF standard stipulates that the GPSLatitude tag consists of three
Rational numbers for the degrees, minutes and seconds of the latitude
and GPSLatitudeRef contains either 'N' or 'S' for north or south
latitude respectively.
.SH SEE ALSO
.TP
.I http://home.arcor.de/ahuggel/exiv2/sample.html#modify
Sample command file.
.TP
.I http://home.arcor.de/ahuggel/exiv2/metadata.html
Taglists with \fIkey\fP and default \fItype\fP values.
.SH AUTHOR
.B exiv2 
was written by Andreas HUGGEL <ahuggel@gmx.net>.
.PP
This manual page was originally written by KELEMEN Peter <fuji@debian.org>,
for the Debian project.