Password protect download directly in wordpress
AuthUserFile /www/path/to/file/.htpasswd
 AuthGroupFile /dev/null
 AuthName "Confidential Information"
 AuthType Basic
 require user admin
	
admin:password
	
AuthUserFile /path/to/file/.htpasswd
AuthGroupFile /dev/null
AuthName "Confidential Information"
AuthType Basic
require valid-user
	
htpasswd -bc /path/to/file/.htpasswd admin password