METADATA(1)

NAME
MAT - Metadata Anonymisation Toolkit

SYNOPSIS
mat [options] files

mat-gui

DESCRIPTION
The Metadata Anonymisation Toolkit is a lib (with a CLI and a GUI) created to anonymise file's metadata. In essence, metadata answer who, what, when, where, why, and how about every face of the data that are being documented. They can be a risk for privacy.

OPTIONS

-h, --help
    show this help message and exit

-a, --add2archive
    Add to outputed archive non-supported filetypes

-b, --backup
    Keep a backup copy

-c, --check
    Check if a file is free of harmful metadatas

-d, --display
    List all the harmful meta of a file without removing them

-l, --list
    List all supported fileformat

-L, --low-pdf-quality
    Reduced the produced PDF size and quality

-v, --version
    Display version and exit

EXAMPLES

mat --display mydocument.pdf
    Display the mydocument.pdf's harmful metadata

mat --check *.jpg
    Check all the jpg images from the current folder

NOTES
MAT only process metadata, it does not handle file data. Blame yourself if you are traced back because of the data of your files. MAT is not perfect: In most of the cases, a forensic expert with a lot of time can trace back your document. If you want absolute privacy, use plain-text.

AUTHOR
Julien (jvoisin) Voisin <julien.voisin@dustri.org>

BUGS
MAT does not handle watermaking/tattoos for now. The --low-pdf-quality option may produce heavier PDF for very small files. You should only use it for big files.

SEE ALSO
exiftool(1), hachoir-metadata(1)