I use Adobe Acrobat DC and recently when I select the WIA scanner driver and use the native interface the only document sizes that are displayed for the document feeder are European and Japanese. There is no Letter, Legal, Ledger, etc.
It worked perfectly until about a month ago. I have updated the Canon drivers, I know I'm on the most current version of Adobe Acrobat, and I have all the Windows updates.
I need help.