security-and-privacy/mat2
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mat2 is a metadata removal tool, supporting a wide range of commonly used file formats, written in python3: at its core, it's a library, used by an eponymous command-line interface, and a nautilus extension.
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README.md 

 _____ _____ _____ ___ 
|     |  _  |_   _|_  |  Keep you data,
| | | |     | | | |  _|     trash your meta!
|_|_|_|__|__| |_| |___|

pipeline status coverage report

This software is currently in beta, please don't use it for anything critical.

Metadata and privacy

Metadata consist of information that characterizes data.
Metadata are used to provide documentation for data products.
In essence, metadata answer who, what, when, where, why, and how about
every facet of the data that are being documented.

Metadata within a file can tell a lot about you.
Cameras record data about when a picture was taken and what
camera was used. Office documents like PDF or Office automatically adds
author and company information to documents and spreadsheets.
Maybe you don't want to disclose those information on the web.

This is precisely the job of MAT2: getting rid, as much as possible, of metadata.

Requirements

  • python3-mutagen for audio support
  • python3-gi-cairo and gir1.2-poppler-0.18 for PDF support
  • gir1.2-gdkpixbuf-2.0 for images support
  • libimage-exiftool-perl for everything else

Please note that MAT2 requires at least Python3.5, meaning that it doesn't run on Debian Jessie,

Running the testsuite

$ python3 -m unittest discover -v

Supported formats

$ python3 ./mat2 -l

Related softwares

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Copyright 2018 Julien (jvoisin) Voisin julien.voisin+mat2@dustri.org

Thanks

MAT2 wouldn't existe without:

  • the Google Summer of Code,
  • the fine people from the Tails project
  • friends

Many thanks to them!