Rich text box that changes size but contents remain constant

I was wondering what is the best way to make a responsive book with multiple pages in UMG? The problem I am having is on different resolutions, the rich text box shows more or less content.

I am thinking it will be easiest to just store the page text as images, and I would be finished if I did that first, but maybe there is a better way!

You can do some maths and use two text-boxes to divide up the text. Simply decide on the number of lines and the overflowing text will populate the other textbox.