I have a slightly easier way to do this if it is an existing geo referenced image or vector PDF. This method assumes you have TCC Explorer installed (if not get it, google TCC explorer Nederland and it's the top result)
Select your PDF in project Explorer
Press F12
Type "writeworldfile"
Go to your project file in Windows Explorer

Select the .png and .pgw shown above
Go to TCC Explorer
Open "Trimble Synchroniser Data"
Select the Controller you are adding the image to
Select "Trimble SCS900 Data"
Select the Project you are adding the image to
Press "Alt" then "F" then "N" then "F" this should create a new folder, right click menu doesn't work properly in TCC Explorer
Name the Folder "Background Images"
Paste the .png and .pgw
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Matthew Pitt
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