Re: I am using iFilter in a SharePoint environment. I need to know if iFilter will work on scanned documents that are not OCR ready. Also I need documentation from Adobe on what type of PDF files will or will not work with Ifilter.

It's very simple: iFilter can extract text only if there is text. A scanned document has no text unless or until OCR is done. The PDF iFilter does not do OCR. (Confusingly some filter types do OCR, but not this one).