PiPO M6 pro - Manual (Page 24)

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Just tap to choose the PDF file from your tablets, make sure
you have those files in your tablets.
If you want to make note or want to sign on pictures, Please tap
. You may edit the documents and pictures as you want.
6.7 Incstage Apps
Incstage Photo, Incstage Presenter, Incstage Reader, Incstage share for sharing
and displaying synchronization.
6.7 .1 Incstage photo
Tap Incstage Photo , enter into the App,