tFPDF::_parsepng PHP Method

    function _parsepng($file)
    {
        // Extract info from a PNG file
        $f = fopen($file, 'rb');
        if (!$f) {
            $this->Error('Can\'t open image file: ' . $file);
        }
        $info = $this->_parsepngstream($f, $file);
        fclose($f);
        return $info;
    }