I watched this helpful video on mapping fields and various things. It was helpful, but I am dying to know how he got a picture of his pdf to appear in the right half of the mapping screen. I wish i could attach a screen shot but I might have to when someone responds.
Select “Enable field previews in the Field Map Designer” under the Settings tab of the plugin’s admin page to view a picture of the pdf in the right half of the mapping screen.
Be advised: This function is not advised for large field map layouts.