<xml>
    <format>
        <name>Portable Network Graphics</name>
        <extension>.png</extension>
        <support>full</support>
        <metadata>textual metadata + date</metadata>
        <method>removal of harmful fields is done with hachoir</method>
    </format>

    <format>
        <name>Jpeg</name>
        <extension>.jpeg, .jpg</extension>
        <support>full</support>
        <metadata>comment + exif/photoshop/adobe</metadata>
        <method>removal of harmful fields is done with hachoir</method>
    </format>

    <format>
        <name>Open Document</name>
        <extension>.odt, .odx, .ods, ...</extension>
        <support>full</support>
        <metadata>a meta.xml file</metadata>
        <method>removal of the meta.xml file</method>
    </format>

    <format>
        <name>Office Openxml</name>
        <extension>.docx, .pptx, .xlsx, ...</extension>
        <support>full</support>
        <metadata>a docProps folder containings xml metadata files</metadata>
        <method>removal of the docProps folder</method>
    </format>

    <format>
        <name>Portable Document Fileformat</name>
        <extension>.pdf</extension>
        <support>full</support>
        <metadata>a lot</metadata>
        <method>rendering of the pdf file on a cairo surface with the help of
            poppler in order to remove all the internal metadata,
            then removal of the remaining metadata fields of the pdf itself with
            pdfrw (the next version of python-cairo will support metadata,
            so we should get rid of pdfrw)</method>
    </format>

    <format>
        <name>Tape ARchive</name>
        <extension>.tar, .tar.bz2, .tar.gz</extension>
        <support>full</support>
        <metadata>metadata from the file itself, metadata from the file contained
            into the archive, and metadata added by tar to the file at then
            creation of the archive</metadata>
        <method>extraction of each file, treatement of the file, add treated file
        to a new archive, right before the add, remove the metadata added by tar
        itself. When the new archive is complete, remove all his metadata.</method>
    </format>

    <format>
        <name>Zip</name>
        <extension>.zip</extension>
        <support>.partial</support>
        <metadata>metadata from the file itself, metadata from the file contained
            into the archive, and metadata added by zip to the file when added to
            the archive.
        </metadata>
        <method>extraction of each file, treatement of the file, add treated file
        to a new archive. When the new archive is complete, remove all his metadata</method>
        <remaining>metadata added by zip itself to internal files</remaining>
    </format>

    <format>
        <name>MPEG Audio</name>
        <extension>.mp3, .mp2, .mp1</extension>
        <support>full</support>
        <metadata>id3</metadata>
        <method>removal of harmful fields is done with hachoir</method>
    </format>

    <format>
        <name>Ogg Vorbis</name>
        <extension>.ogg</extension>
        <support>full</support>
        <metadata>Vorbis</metadata>
        <method>removal of harmful fields is done with mutagen</method>
    </format>

    <format>
        <name>Free Lossless Audio Codec</name>
        <extension>.flac</extension>
        <support>full</support>
        <metadata>Flac, Vorbis</metadata>
        <method>removal of harmful fields is done with mutagen</method>
    </format>
</xml>
