New Document options
- Facing Pages
-
Select
this option to make left and right pages face each other in a double-page spread.
Deselect this option to let each page stand alone, such as when
you plan to print on both sides of a sheet of paper or
want objects to bleed in the binding.
After you’ve created a document, you can use the Pages panel to create spreads with more than two pages or force the first two pages to open as a spread.
- Master Text Frame
-
Select this option to create a text frame the size of the
area within the margin guides, matching the column settings you
specified. The master text frame is added to the A‑Master. (See Using text frames on master pages.)
The Master Text Frame option is available only when you’ve chosen File > New > Document.
- Page Size
- Choose a page size from the menu, or type values for Width and Height. Page size represents the final size you want after bleeds or other marks outside the page are trimmed.
- Orientation
-
Click Portrait
(tall)
or Landscape 
(wide).
These icons interact dynamically with the dimensions you enter in
Page Size. When Height is the larger value, the portrait icon is
selected. When Width is the larger value, the landscape icon is
selected. Clicking the deselected icon switches the Height and Width
values.
To specify the dimensions of the bleed
and slug areas, click More Options in the New Document dialog box.
To make the bleed or slug areas extend evenly on all sides, click
the Make All Settings The Same icon 
. - Bleed
- The Bleed area allows you to print objects that are arranged at the outer edge of the defined page size. For a page of the required dimensions, if an object is positioned at its edge, some white may appear at the edge of the printed area due to slight misalignment during printing. For this reason, you should position an object that is at the edge of the page of the required dimensions a little beyond the edge, and trim after printing. Bleed area is shown by a red line on the document. You can set bleed area settings from Bleed in the Print dialog box.
- Slug
-
The slug area is discarded when the document is trimmed to
its final page size. The slug area holds printing information, customized
color bar information, or displays other instructions and descriptions
for other information in the document. Objects (including text frames)
positioned in the slug area are printed but will disappear when
the document is trimmed to its final page size.
Objects outside the bleed or slug area (whichever extends farther) do not print.
Note: You can also click Save Preset to save document settings for future use.