The View menu lets you control the details that you see in the workspace.
You can toggle these menu items between showing and hiding the specified items.
Show Dimensions
Displays the layout dimensions, including distances between page edges or centers (depending on settings in the Preferences dialog box) and between adjacent pages and press sheet edges. Select a layout element to edit its text boxes.
Show Page Previews
Displays a preview of all page content
Show Page Sizes
Displays the width and height of the selected page, page group, mark, stock, or media
Show Trim Boxes
Displays a dark blue box that indicates the page trim size
Show Bleed Boxes
Displays a red box that shows the page bleed margins
Show File Page Numbers
Displays the input file's page number on each page
Show File Names
Displays the input file name on each page. If Show File Page Numbers is also selected, the page number is added to the file name.
Show Template Page Numbers
Displays the page numbers at the center of each page
Show Marks, Show Pages
Displays or hides the pages or marks. For example, turning off the display of pages makes it easier to check or select marks.
Show Tiles
Displays the tiles and tile marks, if applicable
Show Group Count
Displays the number of pages in each ganged or step-and-repeat page group
Show Folio
Displays the folio that you assigned in the Pages List