I am using Chrome and the latest (6.7.5) version of TCPDF and when I run the ‘I’ inline option for downloading I receive the following error: ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION. If I comment out line 7734 header('Content-Disposition: inline; filename="' . rawurlencode(basename($name)) . '"; '); then the file downloads successfully.