By default, pages of pdf file scrolling from left to right in horzintal dimention.
How can I change it for scrolling for up to down in vertical dimention?
maybe like adobe view page in left view with vertical view and preview page in right
This is not possible. The tool layouts from left to right. This is better for moving pages around. This tool is not a PDF reader, a PDF reader following in one or two releases which can layout from top to bottom.