I'm not 100% sure but I think that by default it's not possible to restrict what mime types can be uploaded in an object's file attribute.
You'll probably have to create a custom edit handler for that.
But hey, this is good idea for an eZP enchanchement...
Note: If you're using multiupload extension you can restrict what types of files can be uploaded under which objects, but I believe this is not what you are looking for.
--
Nothing is impossible. Not if you can imagine it!
Hubert Farnsworth
You must be logged in to post messages in this topic!