I have a workaround, although I'm pretty pissed that HP/Samsung hasn't released a 64 bit upgrade for Easy Document Creator.
Here's the workaround:
In macOS Catalina, open PREVIEW.
With Preview open, select CANCEL to the FINDER window that opens. Then select FILE > Import from "XXXX" where XXXX is the name of your Samsung scanner.
The usual scanner dialogue will open. Make sure you select the correct Scan Mode (flatbed or document feeder).
The next part is the most important item:
MAKE SURE YOU SELECT "JPEG" AS THE FORMAT. IF YOU SELECT ANY OTHER FORMAT, THE SCAN WILL NOT SAVE AND WILL FAIL. YOU MUST SAVE THE FORMAT AS JPEG.
Scan as usual. When finished, your document will open in the Preview app. Select "Quit Preview" and a save dialogue box will appear. Enter a name for the document. NOW YOU CAN SAVE YOUR DOCUMENT AS A PDF or any other format listed. I usually save the document to the desktop.
If you need to print the document, after the document saves, open the document. Preview will open and you can now print the saved document in the format you saved it. Unless you want to print the document as a JPEG, you'll need to re-open the document in the saved format.
It's a kludge, to say the least. But it will at least scan and print your documents.
Hope this helps.