1.On your Android phone or tablet, open the Google Play Books app Play Books.
2.Tap Menu Menuand then Settings and thenEnable PDF uploading.
3.Download a PDF or EPUB file on your device.
4.Open your Downloads or Files app.
Find the file.
5.Tap MoreMoreand thenOpen Withand thenPlay Books or Upload to Play Books.

You can find uploaded files in your Libraryand then Uploads.