iio\libmergepdf\Merger::addFromFile PHP Method

    public function addFromFile($fname, Pages $pages = null, $cleanup = false)
    {
        assert('is_string($fname)');
        assert('is_bool($cleanup)');
        if (!is_file($fname) || !is_readable($fname)) {
            throw new Exception("'{$fname}' is not a valid file");
        }
        if (!$pages) {
            $pages = new Pages();
        }
        $this->files[] = array($fname, $pages, $cleanup);
    }