QPDF_String::new_utf16(std::string const& utf8_val)
{
    return new QPDF_String(QUtil::utf8_to_utf16(utf8_val));
}
QPDF_String::new_utf16(std::string const& utf8_val)
{
    return new QPDF_String(QUtil::utf8_to_utf16(utf8_val));
}