Hi Wes,
You can use Timer component to realize the effect you want.
Timer is native in DS1.6 and you can find it by right clicking the Technical Component.
If you are using 1.5 or less, you can find the component in service marketplace.
Besides, if you are using 1.6, you can hide the export dialog.
If hiding the dialog is acceptable, you just need to put setVisible(true) in the background processing.
Then it will be executed after the pdf is exported.
Best,
Alfred