==== How to remove all metadata from an image on Linux ====
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Install the package (on Debian-based)
apt install libimage-exiftool-perl
We can now remove the metadata
# syntax
exiftool -all=[VALUE] [AFILEORFILES]
# example:
exiftool -all= *.jpg
This operation also changes file modification time, if you want to recover the modification time of files you can do it with a simple find/sed command
find . -type f -iname '*_original' -exec bash -c 'TGT=$(echo {}|sed "s/_original\$//"); touch -r {} "$TGT"' \;