Solve : Searching pdf files via web?

1.	Solve : Searching pdf files via web?
Answer» How via Google can I EFFECTIVE SEARCH just pdf files about a CERTAIN topic? I have tried "topic name.pdf", but the hits were also NON pdf topics with this key words. Thank you very muchTry using http://www.google.im/advanced_search for your search. That screen will let you SPECIFY PDF as the file type for your search. I tested this with Google. Type your topic then a "+" mark, then "pdf" Eg:- barack obama+pdf Search result gives only pdf

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