I have hundreds of apps on my ipad and dozens that work with PDF's, Word, Excel, Powerpoints, etc. Another issue that drives me nuts in the limitation of app choice when using Open In. Also am curious what is going on here and why Apple has not addressed this issue with an update or at least a fix posted somewhere on their help website. Not sure if you were responding to someone else with a different issue. I want to make sure that your suggested fix is the right one for my issue. I assume that they should be backed up in iCloud. I just want to ensure a way to save and backup my PDF's from iBooks before I go deleted the app and anything on my Mac. I could sync with my Mac to backup my PDF's but I believe that you also mentioned in your post that we should delete iBooks backups on our PC to fix this issue. Not worried about the books which I can just download again from iBooks store. Anyway, I am afraid to delete the iBooks apps because Im not sure what will happen to all of my PDF's in iBooks. I haven't synced with my Mac in at least a few months. No reason to sync with my Mac and take up valuable space and effort. I dont ever sync my iPad with my Mac anymore since iCloud. iBooks is the best PDF reader in my opinion, when it works.

Typically I am just saving to read them for work or personal use. I only us Annotate + when I need to edit or annotate a PDF which is pretty rare. This really ***** as iBooks is my preferred storage and reader for PDF's. I've tried dozens of different PDF's from Mail or Safari dozens of times each and nothing will 'Open In' iBooks anymore. Like making sure I would close the iBooks app in the multi-task bar before using the Open In iBooks function. I tried some tricks that seemed to work sometimes. After this issue started I used to be able to get the Open In iBooks function to work if I tried it multiple times.Sometimes it would work on the 4th or 5th try, sometimes the 2nd, and sometimes I would try 10 times and finally just give up and save it to Annotate+. I have no problem however using Open In to save PDF's to any other 3rd party App such as Annotate +, Good Reader, Notability and many others.

When I am in a PDF in Mail or internet and I click on 'Open In', iBooks opens temporarily and I see the new PDF appear in the bookshelf for a second or two and then it disappears. Probably for the last few months, I have not been able to 'Open in' iBooks for PDF's from Mail or the internet. I have dozens of books and probably a hundreds personal PDF's iBooks that I downloaded from Mail or from the Internet. I appreciate your suggestions but I confused.

Ibooks help pdf