You can set bookmarks for pages.
On the page you want to bookmark, tap the bookmark button in the top right.
The bookmark has been set.
You can open pages from the bookmarks you've set.
On the Documents screen, tap the bookmark button in the top right.
This is the Bookmarks screen.
A list of pages you've bookmarked is displayed.
You can navigate to a page by tapping on it from the list of pages.
