def get_pdfarchive(self):
        """
        pdfArchiveオブジェクトを返す
        """
        logger.debug("get_pdfarchive db_path={}".format(self.db_path))
        pdfarc = None
        if self._cmds.get("archive", None) == "archive":
            pdfarc = pdf.PdfArchive(self.db_path)
        else:
            pdfarc = pdf.PdfParam_H5(self.db_path)
        return pdfarc