You will get 1T OneDrive spaces after you purchase Office 365.
If you have write 1T OneNote notes, it's not realistic to store it all in OneDrive and then sync 1T notes to your phone.
 
Therefore, the data should generally archived.
Unusually, already divided into classes, we generally archive processing.
Then, put them in some year-round OneNote notebooks.

Question:
I am having difficulty figuring out how to export a OneNote notebook to a pdf file in OneNote UWP, how can I export OneNote's notebook as a PDF file?

OneNote for Windows 8 (OneNote Metro) 
10/26/2012, with the release of Windows 8, it comes with a different version of OneNote 2010 --- OneNote for Windows 8.
It belongs to Windows 8 Store, so it's only available on Windows 8.
It is using Metro technology, so it's also called OneNote Metro.
 
Since OneNote Metro is specifically designed for tablets, the radial menu features are stunning. Attracted a large number of note-taking enthusiasts to use OneNote.