The Pages panel provides information about and control over pages, spreads, and masters (pages or spreads that automatically format other pages or spreads). By default, the Pages panel displays thumbnail representations of each page’s content.
Select an icon size for pages and masters.
Select Show Vertically to display spreads in one vertical column. Deselect this option to allow spreads to be displayed side-by-side.
Select Show Thumbnails to display thumbnail representations of the content of each page or master. (This option is not available if certain options are selected for Icon Size.)
To resize both the Pages and Masters sections of the panel, choose Proportional.
To maintain the size of the Pages section and resize only the Masters section, choose Pages Fixed.
To maintain the size of the Masters section and resize only the Pages section, choose Masters Fixed.