Searching for certain terms in Assets



In AEM 6.1 when using the "search tool" we want to search for the words Annual Summaries in all of our PDFS in the DAM.  However i dont think this search function actually crawls the PDF'S does it?   It would only bring up that PDF if the meta data had "Annual Summaries" in it or if Annual Summaries was part of the URL.  Please clarify.   Meta data as in - if someone actually put in "Annual Summaries" in the Title or Description of the PDF.