PhpOffice\PhpPresentation\Reader\PowerPoint2007::loadCustomProperties PHP Метод

    protected function loadCustomProperties($sPart)
    {
        $xmlReader = new XMLReader();
        $sPart = str_replace(' xmlns="http://schemas.openxmlformats.org/officeDocument/2006/custom-properties"', '', $sPart);
        if ($xmlReader->getDomFromString($sPart)) {
            $pathMarkAsFinal = '/Properties/property[@pid="2"][@fmtid="{D5CDD505-2E9C-101B-9397-08002B2CF9AE}"][@name="_MarkAsFinal"]/vt:bool';
            if (is_object($oElement = $xmlReader->getElement($pathMarkAsFinal))) {
                if ($oElement->nodeValue == 'true') {
                    $this->oPhpPresentation->getPresentationProperties()->markAsFinal(true);
                }
            }
        }
    }