There are way to many options to list here, but some of them include Font Size, Font Color, Background Color, Background Image, Font Face, Paragraph & Line Spacing, Orientation, Swipe left edge brightness, Swipe
right edge font size, Password protect startup (pro version) and many, many more.
Printing: If your browser is improperly printing some pages with text cutoff on the
right edge then print in Landscape mode or reduce the
font size (View Menu - Text Size) and margins (File Menu - Page Setup).