[pseudohadamard]

Would that be necessary though? You've already got the perfect bookmark, all you'd need to do is check where in the copy the text stops and continue from there in the source. At most you'd need to bookmark the source page, but in theory not even that.

[Luc]

This style of bookmark is rare so it follows it wasn't _necessary_. But with dense text it might be faster and perhaps less error prone than locating the right place in the text?

Scribe would change the margin size and line spacing, and the parchment would be a different size than the source, so the page breaks would end up in different locations in the text.