User-Agent: Googlebot
Disallow: /assets/images/*.*

User-Agent: *
Disallow: /assets/images/*.*

User-agent: Googlebot-Image
Disallow: /assets/images/*.*

User-Agent: Googlebot-Image
Disallow: / 

User-agent: *
Disallow: /*.pdf

User-agent: *
Disallow: /*.png$

User-agent: *
Disallow: /*.gif$

User-agent: *
Disallow: /*.jpg$

User-agent: Googlebot-Image
Disallow: /*.pdf

User-agent: Googlebot-Image
Disallow: /*.png$

User-agent: Googlebot-Image
Disallow: /*.gif$

User-agent: Googlebot-Image
Disallow: /*.jpg$

User-agent: Googlebot
Disallow: /*.pdf

User-agent: Googlebot
Disallow: /*.png$

User-agent: Googlebot
Disallow: /*.gif$

User-agent: Googlebot
Disallow: /*.jpg$