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.
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The scanner driver provided by us is Twain based and would not change the WIA settings. Those drivers are provided by Windows. If you are having paper size issues while using WIA drivers in Adobe, you can try checking your adobe settings for any scanner preferences that you can adjust.
We would be happy to assist with the issue. To provide some feedback or some troubleshooting steps, we would need some additional information. If you could reply to this message with the information below, we can provide some assistance.