Looking for a self hosted file manager to share some file

I'm looking for a self hosted file manager (like owncloud, filerun etc) to share some folder/file with my customer.I need thet all customer can access at the same file with no user and password simply with an url like http://ift.tt/2gJFkyk really like owncloud but it's impossible to view and download file without user and password.I have pubblic file (some pdf catalogues) and i want that everybody can see and download it.I really love a nice user interface to browse the folder (phplister script has a very outdated ui)Do you have any advice?