A few minutes ago I added a small PDF to iBooks on my Mac (DRM-free, not purchased through iTunes). My Mac has iCloud Drive enabled.
My understanding is that this should cause it to be uploaded to iCloud Drive, and thus available on iCloud.com. However, when I log in to iCloud.com, there is no PDF available in iCloud Drive.
Today I also enabled iCloud for iBooks on my iPhone. The PDF is not available there either.
(In iTunes on my Mac, I still have the iPhone set to sync books with my Mac. I was planning to turn this off once I confirmed that iCloud Drive was working. But I don't think that matters here. Bonus points if you can provide any advice on the impact of changing that setting, though I'm pretty sure it should be obsolete once everything is using iCloud.)
Do I have to wait some undetermined amount of time for this to propagate? Any way to make it manually sync so I can confirm it is working?