They are tied to the ACL of the profile type. Go to your profile type and edit the profile type. Then, click on the Access tab

Thank you. I would like to change the overall limit. There is information that you need to do it in php.ini where can I find it?

Hello Mariusz,

Do you mean the server's limit? Yes, it is tied to upload_max_filesize . However, do take note that all the user's access are also dependent on the ACL in the profile type.

Ok,
where can I find the php.ini files?

To be honest, I have no idea. You need to check with your web hosting company Some company allows you to create overrides in your .htaccess why some requires you to create a php.ini in your site's root folder while some others requires you to create user.ini . It all really depends on your hosting company.

Hi Mariusz,
One possible way you can find the path of your php.ini file is in Joomla's System>System Information>PHP Information page(http://take.ms/jFPAG)

Thank you

You are most welcome