I found an interesting PDF with my last Google research, via a direct link to it ( Google result was like http://example.com/somefolder/interesting.pdf). I would like to put the pdf in context, that is to say find a webpage linking to it. How can I find it? I tried to google  http://example.com/somefolder/interesting.pdf, but I got only one result (of course the pdf itself). If I google example.com/somefolder/interesting.pdf I get no result. Does that mean that the original pdf is an orphan attachment?Is there any option in advanced search that I missed? Maybe is there another search engine with this feature?
How to find the webpages linking to a pdf?
search engine
Google has a special HowTo page for you here where you will find advice how to search for a specific link - just as you've described.Use the link: operator.For example, to find pages that link to www.google.com, use [  link:google.com ]. You can also search for links to specific pages  like [ link:google.com/images ].