I have PDF documents that were created by using an SCAN / OCR App. This App puts the Text under the Image. This way the PDF looks like the original, scanned Doc but can be searched.
At least in theory. Because I just discovered that I get no hits when I use the DocumentSearchController of ICEpdf (4.0) . :-(
Of course I testet the search with Acrobat Reader. Just to make sure that there's nothing wrong with the PDF Doc. ;-) And guess what... I get all the hits that I need.