A Searchable PDF is actually a PDF image file. The data is not static (like a photocopied sheet is) as the document has the ability to contain several layers of information i.e. image layer and text layer.
However a PDF created by a scanner on your multifunction device is like a photocopy on your screen. It’s not editable or searchable as it’s much like a photocopied piece of paper. You cannot search for a word or a phrase, even if you use a PC. If a PDF was created by typing a Word document and then turned into a PDF with