I have a figure that is really high, it would fit well in 3 pages, but currently I have it stretched in one. It's only one PDF (converted from a PNG image) and I cannot find out how to divide it in multiple pages. I have searched in multiple places but I have not found the solution.
What can I do?
Update - this is what I have:

But I want to have it split in 3 pages:

The problem is that I have seen those solutions you link to but they do not respect margins or vertical orientation.

