1. ngminh95's Avatar
    Hi everyone,

    Since the iOS 10 update, my iPad Air keeps deleting my PDF files without my permission to free up space and store them on cloud, although I still have 600mb-1gb left and I use those files frequently. Any idea how to turn off this anoying "function"? Thank you very much!
    11-04-2016 05:06 AM
  2. Just_Me_D's Avatar
    I'm confused. The thread title states that iBooks keep deleting your .pdf files, But the body of your post state that the iPad Air itself keeps deleting those files. Which is it?
    ngminh95 likes this.
    11-05-2016 06:52 PM
  3. ngminh95's Avatar
    Oh sorry for the confusing paragraph! I mean, since the iOS 10 update, iBooks app keeps deleting my PDF file. I just want to specify the device, just in case anyone asks!
    11-06-2016 04:01 AM
  4. Just_Me_D's Avatar
    Oh sorry for the confusing paragraph! I mean, since the iOS 10 update, iBooks app keeps deleting my PDF file. I just want to specify the device, just in case anyone asks!
    Is iCloud Drive enabled on your device? If not, enable it. Afterwards, check the iBooks app for your missing .pdf files.
    ngminh95 likes this.
    11-06-2016 06:42 AM
  5. ngminh95's Avatar
    Yes, it is enabled. I knew that those files are on the cloud, I'm just annoyed that the next morning, when I rush to the office, the PDF files I just read last night has gone without any notice. It took 5-10min just to find the files on the cloud and wait to download them
    11-06-2016 02:17 PM
  6. Rod Sprague's Avatar
    This is a really annoying glitch of iOS 10 iCloud Drive document sharing and until it is fixed I would suggest not using iBooks as a PDF reader. There are plenty of alternatives, I use DocumentsToGo which reads most document formats, is free, allows editing and can sync to a matching desktop app.
    ngminh95 and dexterouz like this.
    11-07-2016 07:56 AM
  7. ngminh95's Avatar
    Thank you very much! I thought I am the only one who got the problem, since I couldn't find anyone who had the same questions as me!
    11-07-2016 12:54 PM
  8. Sidric The Viking's Avatar
    Hi everyone,

    Since the iOS 10 update, my iPad Air keeps deleting my PDF files without my permission to free up space and store them on cloud, although I still have 600mb-1gb left and I use those files frequently. Any idea how to turn off this anoying "function"? Thank you very much!
    Hi. I've updated to 10.3.1 recently and - as happened on a previous update - all of my PDFs disappeared. However, all of the PDFs are still on my iPhone. I did my update over the air, as usual. I visited several sites suggesting solutions. Most involved connecting to iTunes. However, I tried something I hadn't thought of before and it worked. I deleted iBooks. Then I downloaded it again. When I opened it, it asked if I wanted to use iCloud. I chose that option. When I opened iBooks all of my PDFs were restored and in their Collections! One very happy Viking here 😎🇮🇪☘️
    Just_Me_D likes this.
    04-23-2017 04:09 AM
  9. Ledsteplin's Avatar
    I see this same issue. There's a toggle that hides iCloud books.

    04-23-2017 06:18 AM

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