I’m not usually keen on re-posting other blog entries here, but I think this is quite important. Jie Li from Microsoft has been releasing some good guidance on SharePoint 2010 recently. In his most recent posts he’s been looking at FoxIt’s PDF iFilter 2.0 and comparing performance against TET and Adobe. Both TET and FoxIt are optimised for multicore processors while Adobe will only use a single CPU. This has massive performance implications. In his tests a full crawl too 13 minutes with FoxIt versus 8 hours+ with Adobe. http://blogs.msdn.com/opal/archive/2010/02/09/pdf-ifilter-test-with-sharepoint-2010.aspx