doc-view-scroll-up-or-next-page
doc-view-scroll-up-or-next-page is an interactive compiled Lisp function in `doc-view.el
'.
(doc-view-scroll-up-or-next-page &optional ARG)
Scroll page up ARG lines if possible, else goto next page.
When `doc-view-continuous' is non-nil, scrolling upward
at the bottom edge of the page moves to the next page.
Otherwise, goto next page only on typing SPC (ARG is nil).