Due to the way many PDF files are created, it may be difficult or impossible to highlight text.
Tap the PDF you are viewing in Safari. Tap the “Open in iBooks” button that appears. If you have another PDF reader, tap the “Open in. . . " button instead then select the app. View your PDF in iBooks or your PDF reader. If you opened it in iBooks, it will be stored in the app and in your iCloud storage so that you can always access it.
If the PDF file was created by scanning a page, you may not be able to highlight text.
Tap the screen while viewing the PDF to display the viewer interface. Tap the Share button in the lower-left corner. Select “Copy to iBooks” in the top row of options. You may have to scroll to find it. View your PDF in iBooks any time. Once you’ve added the PDF to your iBooks library, it will be saved to your iPhone and stored in your iCloud library. You’ll be able to read it even when you’re not connected to the internet.
You don’t need to enable iCloud to use iBooks. You’ll still have access to all of the PDFs you’ve added to iBooks on your device, as well as PDF files synced with iTunes.
If you have iCloud enabled for iBooks, PDFs that you add to iBooks on any of your devices will be visible.
Tap a PDF that you’re reading to open the interface, and you’ll see a preview of all of the pages at the bottom of the screen. Tapping a page in the preview will take you directly to it.
If the PDF was created from scanned pages, it may be difficult or impossible to select text.
