Whether smartphone or camera – when triggered
the result is not just a photo that migrates into the memory. “Everyone
digital image today contains information about the
Date the photo was taken and the location, “explains Rainer
Owes to the “computer image”. The GPS sensor of the
The cameras automatically create this metadata as
Moritz Wanke explains. “With some models, collecting
GPS data are actively turned off, “says the editor-in-chief
of the magazine “Chip Foto-Video”.
Useful, but also tell-tale
The metadata of (smartphone) photos can reveal a lot
For photographers, this is definitely useful additional information, for example
for holiday pictures, says Andrea Trinkwalder from the computer magazine
“c’t”. They will help you catalog the photos later.
Because many image management programs read the metadata and
then sort the images automatically by date or location, convenient
for example for chronological photo albums. “For professional photographers it is
important, for example, to deposit the author “, knows
But what if the party pictures shared on a social network
become? Then the metadata also migrates. “For the operator
such platforms, the metadata in the photos is worth cash, ”
stated Schuldt, among other things they reveal a lot about the
social status of the photographer and his purchasing power. “Who the
Want to put a stop to data collection, should therefore
Delete metadata from the photos before sending them on the trip “,
EXIF, IPTC and XMP
There are three types of metadata: EXIF, IPTC and XMP. In the
EXIF data write all sorts of information about the cameras
Circumstances of shooting: time and place, shutter speed and
Aperture opening as well as correction filters and processing presets.
IPTC fields are usually not automatically included in the admission
filled, but only afterwards: “Here photographers can
Copyright information, the place of recording or a
Store caption and keywords, “explains Trinkwalder.
So especially important for professional photographers.
Finally, XMP is one developed by Adobe
Metadata format which, in addition to EXIF and IPTC, also control data for the
May contain use in Adobe and other programs. “In order to
the image change information is sent to raw files, i.e. to the
pictures not yet developed “, as Wanke explains. Who
exchanges photos between Photoshop and Lightroom, for example
all important information stored immediately.
Programs make deleting easier
“With many machining programs, you can choose whether you want to
want to take over or play the data with or
not “, explains Wanke. The free viewer” IrfanView “deletes
According to Trinkwalder, only EXIF and
IPTC data or the image description.
In Windows, users can mark a photo in Explorer with a click
with the right mouse button call the menu and under “Details” the
Deleting metadata, explains Schuldt.
It is even easier with certain programs. Wanke recommends
exif Purge for Windows or Mac. The free program scores
according to him with a simple and understandable interface. Here
You can also add several images to your EXIF info at the same time
For Macs, “c’t” recommends the free tool ImageOptim,
that works by drag & drop: Simply individual JPEG files or
Drag entire photo folders into the program window and the files will be
adjusted as previously set by the user.
The free Photo & Video Metadata Remover app for iOS devices
creates a clean copy. Thus, the original picture remains
receive all information. You can also use the “Shortcuts” app
Set up to tell tell-tale EXIF data before sharing
Trinkwalder knows that pictures are deleted. You work similarly
the Scrambled Exif app for Android devices available in the F-Droid store
Android users are advised by Wanke to do a free Photo Metadata Remover.
This app is easy to understand and offers batch processing
multiple photos. Even with the Photo Exif Editor, individual
Fields can be specifically edited or deleted – also simultaneously for
One tool for all metadata
Trinkwalder’s tip: The all-round tool for everyone
Windows, macOS and Linux desktop is called ExifTool by Phil Harvey.
It shows and processes EXIF, IPTC and XMP metadata extensively
via command line commands or dispose of them without residue – and
in all imaginable image formats. However: “Here you have to
Users get a little bit deeper into the matter. “
In a guide, you can read 10 tips for better smartphone photos.