Merging PDF outputs using BI publisher

We have a requirement where we need to merge data from two PDFs and generate one output using BI publisher. We have a standalone BI publisher and are using JDE E1 9.0 / tools release 8.98.4.

This is how it will work :

Batch job A calls batch job B . Batch job A creates output as well as batch job B .

The BI publisher template should read the output of these two jobs and create a single PDF .

Batch job A's elements would be on the first page and batch job B's elements will be on the second page.

It will be great if you can please let me know how this can be accomplished .