Currently after opening pdf file, you can switch to double page view with 3dots button on the top right side and popup menu “View two pages” action item.
This action item should be moved directly to top toolbar of pdf reader, where zoom controls are and right aside “adjust to width” button.
REASONING
When opening the same file next time, view settings (zoom, two page view) are not restored, so all layout actions should be quick to use and accessible, not hidden.
Thank you