Here's how to sync and save PDF files from your PC to your iPhone X's iBooks app:
- After that, connect your iPhone to your computer and launch
iTunes.
- When your iPhone X or the iPhone symbol displays in iTunes, choose it.
- Go to the Settings menu and select Books.
- Choose Sync Books from the drop-down menu.
- If iTunes is set to only sync selected books, make sure the checkbox next to the PDF you wish to sync is selected.
- To begin synchronizing, click Sync.
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