User-agent: * 
Disallow: /css/
Disallow: /images/
Disallow: /js/
Disallow: /pdf/
Disallow: /es/css/
Disallow: /es/images/
Disallow: /es/js/
Disallow: /es/pdf/
Disallow: /en/css/
Disallow: /en/images/
Disallow: /en/js/
Disallow: /en/pdf/