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Let's get back to talking about Exif, i.e. the metadata of photographs and videos. If you remember, we have already addressed the topic when we reviewed the application Open source for Android call Scrambled Exif. With this article we will see other applications and other similar methods for delete metadata from videos and photos.
Today we're going back to talking about it because we want to offer you other equally interesting applications. In the meantime, let's do a brief summary of what they are Exif. These are the metadata of photographs and videos. Metadata is all that information that identifies photographs and videos in some way.
Exifs contain a lot of important information
For example, they can contain important information such as the time and date of the shot but also the cell phone model or video camera used. Not only that: they can also contain the GPS location and other technical information. All this data is then uploaded onto the internet without giving it too much weight they can somehow allow an attacker to trace back to us.
More generally, however, it is a problem in terms of privacy above all if those sharing the images and videos are not aware of all this. That's why our main goal is to inform you about these things. It is then up to you to decide whether it is appropriate to eliminate them Exif or less.
We tend to recommend doing it especially when you decide to upload a photograph or video to the internet. In fact, once uploaded onto the internet, you don't know where and into what hands it may end up.
For those who want, you can find a little more information on this in this article BBC called The hidden fingerprint inside your photos. It's in English but you can translate it with DeepL or with the extension Mate Translate.
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How to delete metadata from videos and photos with MAT2
Let's get to the main reason why we decided to write this article. It is to present the project to you Open source 1 MAT2 which will allow you to delete, directly via Browsers, all the Exif of your photos but also of your videos!
What you have to do is really very simple. Go to the site https://mat2web.dev/ and choose if you want to delete the metadata of a photo or video already created or if you want to use the camera to create a video or photo already without metadata.
Once the file is uploaded you can download it and you will also have a detailed report what was removed from your photograph or video.
MAT2 it's free software and anyone can create oneInstance. That's what we reported to you official but potentially there can be an infinite number of them.
•On Android
Just for completeness, we would like to point out again two applications to be used directly on Android:
- Imagepipe, an application Open source which allows you to remove Exif and also do some editing on the photos.
- Scrambled Exif, other application Open source very useful for sharing photos without leaving a trace metadata.
- Simple Gallery, this suite application Simple Mobile Tools allows you to simply remove the Exifs on your photographs: just press on the info icon at the top right and select “Remove exif”. A convenient option as unlike the previous ones, this one can replace your gallery on Android. Also available on F-Droid. Thanks for your report.
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