![]() ![]() The exiftool is a mighty utility and managing JPEG files is just a tiny peek into its functionality. The first command shows how to remove all meta information from a single file. With exiftool all the meta information like EXIF and more can be removed with one simple command. This could allow tracking the whereabouts of the smartphone owner. As an example, smartphones not only store the name and model of the smartphone but also date, time and location information. Sharing those photos in social networks might reveal information many users are not even aware of. Many devices store more and more meta information in photos. ![]() In case the modification was not successful or did not provide the expected result, the backup files can be restored in a similarly convenient way. ģ7 originals will be deleted! Are you sure ? y After successful processing of the files, the backup files can be conveniently deleted using the following command with the “-delete_original” option. Before a file is modified a copy is created with the suffix “_original”. Backup and restoreīy default exiftool creates a backup of every file modified. The path at the end of the command line defines the start path where exiftool starts looking for files. The format of the copy instruction is the following. To copy, for example, the date that is shown with the tag “DateTimeOriginal” to the modification date (tag: “FileModifyDate”) of the file (for sorting in the file explorer) the following command can be used exiftool '-DateTimeOriginal>FileModifyDate' _DSC5260.JPG The groups starting with “” show information that is stored inside the JPG file as EXIF (EXchangeable Image File format) data. Depending on the settings and behaviour of the image viewer used, this can mess up the order of the photos. This date information can easily be lost when files are copied, or rotated from portrait to landscape. The tags listed with the group “” show the filesystem information of the file. A short output format is produced with the “-s” parameter. The tag names are needed later on to set or copy the information from one to the other. ![]() The output as shown above shows the tag name as the second column while the first column contains the group of the tag in brackets. Instructing exiftool to print out the tag name and group name of each tag is done using the “-G0:1” option. With the -a option, duplicate tags are shown as well. The above command lists all time relevant information (-time:all) for the given JPEG file. The exiftool CLI can be downloaded from The following command shows how to read out the different date and time information from a JPEG photo in the current directory. With the freely available exiftool, photo details can be exported as well as modified. The following shows how to manage photos using exiftool. Command line utilities allow you to script the processing of photos. Additional to the GUI tools that are available to manage EXIF information in photos, there are also command line tools that can do this as well. ![]()
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