Uploading your book to Dropbox’s free cloud storage is a really quick way to share your book with your friends, family or students. To get started first install the free Dropbox app onto your iPad, and create an account with Dropbox. Once the app is installed you’ll see “Open in Dropbox” appear next to “Open in iBooks” in Book Creator.
Opening your book in Dropbox will upload it to your cloud storage and from there you can email or copy a link to your book for sharing.
And the best bit about it – the people you share with don’t need to be Dropbox users. They can just tap on the link and open your book straight into their iBooks app.
If “Open in Dropbox” doesn’t appear in Book Creator after installing the Dropbox app then check if there are already 10 apps listed in the “Open in…” section. The iPad will only display up to 10 apps in this list, so you may need to uninstall some of the other apps listed before Dropbox appears.