Hi Penny,
The Time Sheet is strictly for Time Entries, since it is a cumulation/summary of time. For expenses you would have to run a separate report for the expenses. For the standard Time and Expense reports, those are only generated in HTML and/or CSV, as both of those can be parsed for import into other apps if needed. The PDF is a fixed format that doesn't allow for that. It is unlikely that we would redo the standard reports in PDF, but we will add your request to our "wishlist".