Sometimes it's necessary that anonymous visitors or even certain roles (or persons) may not see certain content. The module Page Access makes this possible by content and not by content type. After the installation and activation of the module, you must only open the content to set acces permission.
Under the tab Page acces Settings you can check the access control and then indicate which role or which user has access to.
Note: For a multilingual site, you must do the access restriction for each node and language.