$fontname = mb_strtolower($style["family"]);
        $families = Font_Metrics::get_font_families();
        $entry = array();
        if (isset($families[$fontname])) {
            $entry = $families[$fontname];
        }
        $local_file = DOMPDF_FONT_DIR . md5($remote_file);
        $cache_entry = $local_file;
        $local_file .= ".ttf";
        $style_string = Font_Metrics::get_type("{$style['weight']} {$style['style']}");
        if (!isset($entry[$style_string])) {
            $entry[$style_string] = $cache_entry;
            Font_Metrics::set_font_family($fontname, $entry);
            // Download the remote file
            if (!is_file($local_file)) {
                file_put_contents($local_file, file_get_contents($remote_file));
            }
            $font = Font::load($local_file);
            if (!$font) {
                return false;
            }
            $font->parse();
            $font->saveAdobeFontMetrics("{$cache_entry}.ufm");
            // Save the changes
            Font_Metrics::save_font_families();
        }
        return true;
    }
}
Font_Metrics::load_font_families();