Merge two pages. How to?

[SeuLunga]

(I don't know if this is the place to ask this)

Schubert's D.823 is displayed as two separate pieces, on two pages. One has the first movement (http://imslp.org/wiki/Divertissement%2C ... C_Franz%29), the other the second and third (http://imslp.org/wiki/2_Pieces_for_Pian ... %2C_Franz)).
They should be merged, but I don't know how to do it.