Hi Tel,
You should find columns dynamically sized in PDF rendering too. You can see this if you use the sample GO Sales and Retailers package and write a report containing just the Description item from the Products query subject. When you run the report, the Description column takes up the entire width of the PDF page. Now go back and add Product Line, Product Type and Product Name, and run the report again. This time the Description column gets rendered narrower to leave space for the other columns on the page, and you will see more word-wrapping as a result.
To change this default behaviour, you can fix the width of a column using the Size and Overflow property, but that's pretty much it.
Does that cover what you need, or do you have something else specific in mind you need to do?
Regards,
MF.