Hello, what file do I edit so that the Title and Attribute fields of the attachments may be required?

Is it possible to limit uploading only .PDF files?

K2 2.7
Joomla 3.3.3

Hello there,

The title and attributes are entered in the form during the upload of the file.

You can limit the valid files which can be uploaded by altering Joomla!'s media settings.

BE CAREFUL this will affect other settings as well.

Sorry the English, I guess I was not clear. I would like the attachment to be saved only if the user entered the title and description. I need the title and attribute fields to be obligatory.

I've changed the media permissions of joomla, and it's still accepting all kinds of files. Sending to the joomla files the lock works, in the attachment tab of K2 it continues to accept any kind of file.