Sign out of iTunes and Sign in Back
Go to Settings > iTunes & App Store > Apple ID > Sign Out
Wait 20-30 seconds and then sign back in
If using iCloud for Books, confirm on your iPhone or another iDevice that Books is ON
Go to Settings > Apple ID Profile > iCloud > Books
Toggle Books Off and back on in iCloud
Go to and toggle OFF, wait 20 seconds, and toggle back ON
Reset your device (force restart)
On an iPhone 8 or above: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then, press and hold the Side button until you see the Apple logo
Completely close the Books app and restart
Swipe up the Home Gesture Bar or Double Tap the Home Button. Locate the Books App Preview and swipe up off the top of the screen to close the app
Remove the Books app and reinstall
Tap and hold the Books app icon on the home screen, until the icons start to jiggle. Then tap the “x” in the corner of the app to remove. To reinstall, launch App Store, locate the Books app and download/install
Opening PDF from another App?
If you’re opening a PDF from an app, first tap the PDF file, then tap the Share Button and scroll to the right or left to locate Copy to Books on the Share Sheet.
If you don’t see the Share Button, tap on the screen until you see the Open in Books tab and tap. Books automatically saves a copy of the PDF to your Books bookshelf.
Try Using the Files App or a Third-Party App
If this still doesn’t work, consider using the Files app to locate your PDF files and copy them to Books.
Open the Files app, then tap the bottom Browse option.
Tap Locations in the upper-left and choose where your PDF is located (like Dropbox, Google Drive, iCloud Drive, On My iPhone, etc.).
Locate the particular PDF you want to open in Books, tap it, and then tap the Share Button.
Swipe left or right and locate Open in Books and tap that.
Once it opens in Books, tap the Share Button again and select Copy to Books from the Share Sheet.
Alternatively, try downloading the Adobe Acrobat Reader App for your iDevice. It’s free and allows you to open PDF docs from email, web, and even apps that support Open In functions. You can also open a PDF in Acrobat Reader, press the Share Button, choose Open in… on the Share Sheet, and then select Copy to Books to move the PDF over to your Books app.
Old PDFs not Showing Up?
Try and copy a new PDF document into Books on your iPhone, iPad, or iPod Touch and see if your device now recognizes your older PDF files.
What i should do.
Save the file from Safari or whatever browser you use to the Files app
Tap the share sheet
Choose Open in Books