It should work. However, we have some reports that some combinations of PlanetPress versions, how a PDF is built and which driver is used may result in an incorrect paper size being used.

In addition to trying Raphael's suggestions, I would kindly ask that you contact Support and provide them with the necessary resources to recreate the problem so that we can take a look at it in the future.
_________________________
Yannick Fortin, Team OL