Steps to open a PDF stored in Books (iBooks) in Snap&Read:
1. Log into Snap&Read on your iOS device.
2. Open the Books/iBooks app on the device.
3. Tap on youe Library.
4. Tap on Edit.
5. Tap on the PDF you wan't to open in Snap&Read.
6. Tap on the share button on the bottom right corner of the screen.
7. Tap on Snap&Read in the upper row of apps.