PDF text search - 2013
Once you have parsed the contents of a file and placed it in a text attribute you could make that searchable using the file list object. You could also use the document library addon from the marketplace. If you specifically wanted it to show up in the page search you could make sure the file block's getSearchableContent returned the text from the attribute that the pdf's content was stored in. Then when a file block was placed on a page it would add the contents of the pdf to the pages searchable content.