The icon for iBooks no longer appears. There now appears a bar with people to share with. All I want to do is be able to save my pdf to iBooks.

The icon for iBooks no longer appears where it used to when I create a pdf online. I can’t find it on any of the options either. The options used to include OneDrive also but I now have extra steps to go through to save pdfs (from online) to my OneDrive: there now appears a bar with people to share with instead. All I want to do is be able to save my pdf to iBooks and OneDrive as I did previously. The link from Apple takes me through the steps I did before the update but doesn’t help at all now.