2. Drag and drop the ePub file onto your Library in iTunes on your computer. The ePub document is added to your iBooks collection inside the iBooks app.
3. Open the ePub document from the iBooks app on your iPad.
Open PDFs in Books on Ipad
Do one of the following:
1. Touch and hold the PDF attachment, then tap Copy to Books.
2. Tap the PDF attachment to open it, tap , then tap Copy to Books.
Upload PDF & EPUB files on Android
To upload files on your computer :
Go to Google Play Books.
Click My Books.
Near the top right of your screen, click Upload files.
Find the PDF or EPUB file you want to upload and click Select.
, then tap Copy to Books.
> Settings > Enable PDF uploading.