Page numbering issue - A Unique requirement

Hi ,

     I have a situation where I need to print page numberswith respect to Invoice. For each invoice the page numbering has to reset to 1. This is simple in case of normal batch invoice. But my case is different.

Let me explain the problem.

For our batch printing, each invoice has to be printed thrice (Master copy, Customer copy and Driver copy, which will be water marked) .

Example:

Say we have 2 invoices, i1 and i2. Invoice i1 has 2 pages and i2 has 1 page.  Then the printing will be

i1-page1 - Master copy

i1-page2 - Master copy

i1-page1 - Customer copy