If you want to restrict your users or visitors to read or download your books without login then this features is for you.
Books gallery provides you the option to restrict users to login first before download the books or read it on your website. This restriction applies on the download button. Hence if a user click on it, it will check if that user is already logged in or not. If he/she is not logged in then it will redirect it them to the default login page.
After you configure the download button correctly, go to WBG Books -> General Settings
Now find the Download When Logged-in option.
Check it and Save Settings.
Now your download button will only display to a logged in user.
