Could you go back t the 5.1.0 version...
We lost the page number up there in the preview, so you don't know where you are... and in the 5.1.3 the accesibility tool for blind people doesn't work. Que you do the gesture sliding two fingers down the screen it take you back to the first page of the document and sais there is nothing to be read un tha document.
Give us back the 5.1.0 version!!!!
Please