It sounds like your file itself is showing two pages side-by-side. MobileSheets does not support vertically scrolling two pages side-by-side, so it would be impossible for that to be occurring on your device. If you want to send me the PDF, I can take a look at it, but it sounds to me like you are going to need to use the page ordering (rearrange) feature to duplicate pages and crop each instance of each page to separate the two pages on each page of the PDF.
As a side note, once you fix the file, you can set the page scaling to "Fit Width". When using with the vertical scrolling display mode in landscape, the file will take up the entire width of the screen, and then you can scroll through the file.
Mike
As a side note, once you fix the file, you can set the page scaling to "Fit Width". When using with the vertical scrolling display mode in landscape, the file will take up the entire width of the screen, and then you can scroll through the file.
Mike