Lemmy

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Everything about Lemmy; bugs, gripes, praises, and advocacy.

For discussion about the lemmy.ml instance, go to !meta@lemmy.ml.

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Does Lemmy remove metadata of images when uploading? (discuss.tchncs.de)

submitted 1 year ago by Salzkrebs@discuss.tchncs.de to c/lemmy@lemmy.ml

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I used to manually remove for example the GPS location when using Reddit since I don't trust them. Does Lemmy or any Android client remove it by default?

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[–] Ultrawipf@discuss.tchncs.de 10 points 1 year ago (1 children)

Uploaded this test image in the comment with modified metadata (no gps tag but added software, date, vendor info as exif tags) and after downloading it does not contain any metadata anymore. So seems like at least that server does remove it?

[–] Salzkrebs@discuss.tchncs.de 5 points 1 year ago (2 children)

Thanks for your effort :) So it seems like you have to trust your instance?

[–] tedvdb@feddit.nl 4 points 1 year ago (1 children)

Yes, but that's something anyway;

DM's are unencrypted and stored in the database.
If the instance owner decides to pull the plug it's all gone.

So by joining an instance you're putting trust in the owner of the instance either way.

[–] Salzkrebs@discuss.tchncs.de 3 points 1 year ago

But there is still a difference between the owner being able to take my public content offline and them knowing my private location. However, since my instance is non commercial and doesn't make any money by tracking it shouldn't be that bad to trust them on that.

[–] Ultrawipf@discuss.tchncs.de 4 points 1 year ago

Yeah probably. Seems like the image is not stored in its original form in this case but might depend on server settings and the image file. So as always private data like geo tags should be removed before uploading.