Are the pdf versions of the books searchable using adobe or are they just scanned images that can not be searched?

The versions of GotF and TL I bought from E23 are searchable.

Usually we produce them from our printer files, so the newer PDFs should be searchable. It's just the REALLY old ones that might not be, in cases like the old White Wolf sourcebooks where we never had the printer files to start with and had to scan an actual book.