DMS Uses the database to index documents resulting in a very quick response. You can specify directories to search and the maximum number of documents to return. You can search on almost any file including, but not limited to, the following file types:  .doc, .pdf (DMS for oracle only), .txt, .rtf, .htm, .html, .xml, .asp, .aspx, .ppt, .xls, and .jpg.

DMS supports Incremental indexing, which detects the following changes to files and updates the index accordingly: Modification, deletion, addition, renaming.

Look at the screen shot  and see what it can do.