MicrosoftMe too! I'm willing to pay for software to import all of our gigabytes of onenote notebooks into Joplin or similar FOSS. Embedded pdfs might not be possible as onenote never had native support for pdf: they are rendered the same as if you did raster printing or scanned paper pdfs into graphics files.
And just ran across this gem of a fail as well, to that turns insult into injury:
https://answers.microsoft.com/en-us/msoffice/forum/all/files-are-editable-in-onenote-2016-but-are-read/95d9c0d1-8ed6-4104-a223-7dee6c1eb95f
Apparently a known-issue that is a real show-stopper: due to sandbox caches, onenote-2016 can read-write 1-drive notebooks, but win10-app sees them all as read-only. Above link has detailed explanation from Microsoft as to why this happens due to sandboxed cache, but microsoft said nothing about if it will ever be fixed. Only solution so far is to keep using onenote-2016 instead of the horrible win10 app. It sounds like this issue can NOT be fixed, so doubt it will be fixed by Oct 2020.
And so, in Oct 2020, will OneNote-2016 quit working for notebooks in the cloud? How long might we reasonably continue to use OneNote-2016 with non-cloud notebooks? Is there a time bomb in it?
