Possible master document structures
A master document can include more than one page. When you print a variable document and specify a FreeForm master that has multiple pages, the master pages combine with the variable pages in a cycle.
For example, with a two-page master, Pages 1 and 2 of the variable document combine with Pages 1 and 2 of the master document. Then Pages 3 and 4 of the variable document combine with Pages 1 and 2 of the master document. This pattern continues for each subsequent set of pages in the variable document.
Figure 1. Combined document using 2-page master