Thanks for the reply. It's though a bit more complex than just 2 columns.
My user wants a pdf with for instance on 1 page the following items:
- company logo in upper right corner and upper left corner
- title, centered on top, between the 2 logos
- a table centered on the page, below the title
- 2 graphs under the table
So in this case you can't solve it with the columns options.