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mat(1) [bsd man page]

METADATA(1)                                                        User Commands                                                       METADATA(1)

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 -f, --force Don't check if files are clean before cleaning -l, --list List all supported fileformat -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 <>, during the GSoC 2011 BUGS
MAT does not handle watermaking/tattoo for now. SEE ALSO
exiftool, hachoir-metadata Metadata Anonymisation Toolkit August 2011 METADATA(1)

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IGREP(1)                                                      General Commands Manual                                                     IGREP(1)

igrep - search images for matching metadata SYNOPSIS
igrep [options] pattern files... DESCRIPTION
The igrep utility is invoked as follows: igrep [options] pattern filename... Where pattern is a POSIX.2 regular expression (just like the Unix/Linux grep(1) command), and filename (and any following names) specify images or directories that should be searched. An image file will "match" if any of its metadata contains values contain substring that are recognized regular expression. The image files may be of any format recognized by OpenImageIO (i.e., for which ImageInput plugins are available). Example: $ igrep Jack *.jpg bar.jpg: Keywords = Carly; Jack foo.jpg: Keywords = Jack test7.jpg: ImageDescription = Jack on vacation For a complete description, see /usr/share/doc/libopenimageio-dev/openimageio.pdf.gz. OPTIONS
--help Print help message -i Ignore upper/lower case distinctions -v Invert match (select non-matching files) -E Pattern is an extended regular expression -f Match against file name as well as metadata -l List the matching files (no detail) -r Recurse into directories -d Print directories (when recursive) -a Search all subimages of each file SEE ALSO iconvert(1), idiff(1), iinfo(1), iprocess(1), iv(1), maketx(1), oiiotool(1). AUTHOR
OpenImageIO was written by Larry Gritz and the other authors and contributors. This manual page was written by IRIE Shinsuke <>, for the Debian project (and may be used by others). May 19, 2012 IGREP(1)
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