User-agent: * # directed to all robots
Disallow: /adm
User-agent: Googlebot-Image
User-agent: Googlebot
User-agent: bingbot
User-agent: Googlebot-Image
User-agent: MediaPartners-Google
User-agent: Slurp
User-agent: Msnbot / bingbot
User-agent: ia_archiver
User-agent: *

Disallow: /*.jpg$ 
Disallow: /*.jpeg$ 
Disallow: /*.gif$ 
Disallow: /*.png$
Disallow: /*.pdf$