Plugins
Prevent Direct Access Gold v3.3.6
Prevent Direct Access (PDA) Gold protects unlimited WordPress media files, e.g. PDF & MP4, against Google & unauthorized users.
Plugins
Content Protector for WordPress v2.0.1 - Prevent Your Content from Being Copied
Protect your online content from being copied. Just install add a small plugin on your website and Content Protector for WordPress defend web content from being plagiarized.