First Appearance

Reading

Turn the page

Swipe or drag, the arrow keys, or Page 1/3 and Page 3/3 below

Jump to a page

Tap the page number in the middle, then a page

Full size

The corners icon, or F. The page fills the window

Fit to screen

The same icon, F, or Esc

Read down a page

Scroll, in Full size

Show the controls

Hold the page, in Full size

Close

The cross, or Esc, back to the issue

This help

The question mark, or ?