Excel-Like autofit

Question

I'm working on an application for making planning. For the moment I use the old system based on Excel + VBA macro. I've redone all but not the print system because Excel is very good for this. I've manage to paint a printpreview but the advantage with Excel is that you can draw all you want without take care of papersize when you want to print, when you configure the page settings Excel will automatically adjust all so it fits good in the papersize and orientation you selected. Actually my printpreview is only for A4 but users can choose between A3 and A4 and maybe others in future. So i'd like to know if it is possible to make an Excel-Like autofit in function of the page settings. Thanks PS : sorry for my crap english, languages are not my cup of tea :)