Another Copy of that Yearbook?

I have copies of my parents’ high school yearbooks, so accessing them digitally online is not a necessity. Recently, partially out of boredom, I decided to look at Ancestry’s digital images of the yearbooks I already have paper copies of.

There were a few notations as to the married names of some of the female graduates.

Is there a chance that the digital copy of a the same book you have has annotations, comments, or even signatures that your copy does not? Year books are probably the best example where the copy that was used to make a digital image may contain personalizations that are in no other copy, but genealogies and other books can have remarks and other commentary added as well.