I use a scanned PDF file instead of a fax.
It is very useful because it is scanned as a "document" and the distortion is corrected.

However, because there is OCR function, the text recognized by the character is embedded.

Because I'm trying to use it as a PDF file instead of a fax,

Distortion correction allows images to be filtered in black-and-white or grayscale to hold multiple pages

I want to save PDF, but character recognition is not required.

Is there a setting method that turns off the character recognition function and corrects distortion?

(I translate Japanese into English by machine translation.)