Scanning pdf

When I scan a document on my printer it says it is scanning it as tif (adobe acrobat document) and once it has scanned and is in the file it says its a pdf but when i try to open it I get the following message.

Adobe Acrobat Reader could not open kabuto 001.tif because
it is either not a supported file type or because the file has been damaged
(for example, it was sent as an email attachment and wasn’t correctly decoded).