Modify the PHP file upload limit
Modify the following options in the /opt/bitnami/php/etc/php.ini file to increase the allowed size for uploads:
; Maximum size of POST data that PHP will accept.
post_max_size = 16M
; Maximum allowed size for uploaded files.
upload_max_filesize = 16M
Restart the servers for the changes to take effect.
$ sudo /opt/bitnami/ctlscript.sh restart