MAT: Metadata Anonymisation Toolkit
Should be used to make sure the metadata are stripped: https://mat.boum.org/
Currently https://mat.boum.org/ says that development is on hold, Python 3 isn't supported, and suggests not to use the tool. Perhaps we should consider alternatives?
There are some updates to make it a bit more Python 3 compliant:
https://gitweb.torproject.org/user/jvoisin/mat.git/log/
Maybe we should invest some time into review the current code base. By the way, do you any other alternatives?
Hmmm, one option would be using exiftool, maybe with https://github.com/smarnach/pyexiftool (Python bindings for exiftool) but that doesn't look actively maintained and isn't on pypi. I'll look into it more + see exactly what the problems with MAT are.