I have content files, this secret file at my company
I Create consumer roles to this file, the file be read-only access via web, but can at copy to local hardisk, How to disable copy to local hardisk ? so that the file only read only via web, don't copy
The Save Target As is a feature of the web browser, not a feature of the Alfresco web-client as such. You would either need to create a custom secure client for those users or write some fendish javascript to take over control of the right-click context menu - there are examples on the web…