You will find your PDF copies in the following folder:

[core simulator folder]\Official\OneStore\orbx-pdfmanual\inc\PDF\

Your folder structure may look a little different if you use the Steam edition or saved the simulator in another location.

You will find both the single and spread view of the PDF. You can then copy these files to other locations such as an iPad.

Steam Customers

Your location will vary slightly. You will find the PDF download in the 'core' simulator product in either of the following locations.

It will either be:

C:\Users\[Your User Name]\AppData\Local\Packages\Microsoft.FlightDashboard_8wekyb3d8bbwe\LocalCache\Packages\