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

User-agent:Bytespider
Crawl-delay: 86400

User-agent:MJ12bot
Crawl-delay: 86400

User-agent:AhrefsBot
Crawl-delay: 86400

User-agent:PetalBot
Crawl-delay: 86400

User-agent:Googlebot
Crawl-delay: 86400

User-agent:ev-crawler
Crawl-delay: 86400

User-agent:ImagesiftBot
Crawl-delay: 86400

User-agent:Bingbot
Crawl-delay: 86400

User-agent:Googlebot-Image
Crawl-delay: 86400