User-Agent: *
Allow: /

User-Agent: Mediapartners-Google
Disallow: /pictures/
Allow: /

User-Agent: Googlebot
Disallow: /pictures/
Allow: /

User-Agent: Googlebot-Image
Allow: /pictures/
Allow: /

User-Agent: Adsbot-Google
Disallow: /pictures/
Allow: /

User-Agent: Googlebot-Mobile
Disallow: /pictures/
Allow: /