return {
    version   = 1.001,
    comment   = "companion to lpdf-fmt.lmt",
    author    = "Peter, Hans & Mikael",
    copyright = "PRAGMA ADE / ConTeXt Development Team",
    license   = "see context related readme files",
    features  = {
        version      = 2.0,
        format       = "PDF/A-4",
        xmpfile      = "lpdf-pua.xml",
        intent       = "GTS_PDFA1",
        gray         = true,
        cmyk         = true,
        rgb          = true,
        spot         = true,
        calibrated   = true, -- unknown
        cielab       = true, -- unknown
        intents      = true,
        forms        = true,
        tagging      = false,
        internal     = true,
        transparency = true,
        jbig2        = true,
        jpeg2000     = true,
        compression  = true,
        info         = false,
        acrobat      = false,
        attachments  = true, -- only in PDF/A-4f
        layers       = true, -- only in PDF/A-4e
     -- richmedia    = true, -- onlu in PDF/A-4e
        metadata     = {
            {
                "replacexmpinfo",
                "xml://rdf:RDF/pdfaid-placeholder",
[[
<rdf:Description rdf:about='' xmlns:pdfaid='http://www.aiim.org/pdfa/ns/id/'>
      <pdfaid:part>4</pdfaid:part>
      <pdfaid:rev>2020</pdfaid:rev>
    </rdf:Description>
]]
            },
        },
    },
}
