Hi, I have a large book in pdf format and I would like to search and find several results within the document. For example if I search for "brain activity at night" I don't want to have a list of documents as a result, but a series of results of searches within the file and with an extensive context preview if possible. Eventually,I would also like to include, in the same way, several books. I could just search the pdf with Adobe reader, but what I am interested in is not to find a word, but meaningful results for a series of keywords I look for, like in Google, kind of figuring out what you are trying to find. Do you now if it is possible with regain? I hope I was not confusing. Thanks in advance.