Do I need to set the scanning width when scanning with a large format scanner? Is the scanning content ratio 1: 1? If not, what should I do?

When scanning with a large format scanner, there are many ways to set the width, such as automatic identification, standard size, user-defined size and so on.

The scanned image is generally 1: 1, and some images can be scaled and scanned. For example, Colorgiant large format scanner can scan A4 drawings into A0 electronic files, and vice versa! Ha ha!