I am 100% sure that there is some kind of problem with webinator searching (not indexing) landscape pdf documents.
I would like you to walk the following folder:
http://www.creditunions.com/cud/
the whole folder is pdf documents so do all the settings that optimizes the pdf searching (and let me know as well)
next, if you see the individual body content in list/edit urls you will find that body content for landscape mode pdf is sometimes messed up for the top of the document but all actual info is there.
Try searching for various names of credit unions that you see in the body (I don't remember exact page nos. but On_Page_200.pdf to On_Page_250.pdf are good candidates for testing.
what I have found is that almost always search by name isn't working but if I search for numbers the pages 200 to 250 will appear. I have no explanation for that. However I can see that the names are breaking up many times so that webinator may not be finding it.
At this point I really don't care much about hilighting but we want our clients to trust the search engine so that whatever shows up is definately all there is (I don't care about speed of search either). This is 600 page document full of data so locating where a particular piece of infomation is all that matters.