When a book page gets bound, the inner edges of the
book pages are glued together. These inner margins
are often called the “gutter,” and it’s important to leave
enough room on the inside margin so that text doesn’t
fall into the gutter. The longer the book, the thicker
the book, and therefore, the bigger the inside margins
• However, as long as you set the outside margins to
0.75” and the inside margin to 1.0”, then you DO NOT
need to set an additional gutter. Set gutter to 0.0.”
• “Mirror margins” is usually the best format option.
If you’re including images in your document, it’s impor-
tant that they be high-resolution images, so that they
print crisp and clear. We recommend saving images at
300 DPI (dots per inch) or higher.
Note that the color on your computer screen will not
necessarily match the color of your printed pages. Your
computer screen shows projected RGB color (Red, Green
and Blue), and the printed books show CMYK color
(Cyan, Magenta, Yellow and Black).
Before printing a large numbers of copies, be sure to
look over your print-ready PDF to ensure that the images
appear how you want them, or print out one copy of
your book to start.
A Checklist for Images
Here is a checklist to make sure your images meet print-
• Images must be at least 300 DPI to be considered
• For full-bleed interior images (images that print to the
edge of the page), a good bleed value is 0.125.” The
bleed value is the margin beyond the edge of the page
to which the image should extend in order to ensure
that printing consistently reaches the edge of the page.
• Images must be embedded into the document and
not be a reference link. The PDF should include every-
thing needed to print the ﬁle—images, fonts, and text.
• Remember that you must have the rights to all of
the images you use.
• If you’re using Photoshop, InDesign or Illustrator,
make sure your images are flattened to analog.
Analog means that an image with multiple lay-
ers—designed using the above programs—has been
condensed into a single layer. For instructions on
flattening images see below.
Converting a Multi-layer Image to Analog when
using Photoshop, InDesign or Illustrator
To retain the richness and depth of a multi-layer image
that you need to save as a ﬂattened, analog version for
your print-ready PDF, you’ll need to save the image as a
.psd or .png ﬁle. On a PC, you can click Control + A to
select the entire image, press Control + Shift + C to copy
the selection as a single layer, and then press Control + V
to paste the selection back into your workspace. That will
give you the ﬂattened layer you want, with the original
layers still intact underneath.
Inserting Images Using Microsoft Word
To insert an image from a saved computer file or insert
clip art, go to the Insert menu from the top naviga-
tion bar. Select Picture to insert an image from your
computer or Clip Art to insert stock photography.
With the image selected, go to the Format menu and
select Format Picture. You can then format your image
Choosing the right typeface/font for your book is based
on personal preference. However, certain fonts are bet-
ter for reading and certain fonts are better for design.
Whichever font you choose, it’s important to think about
how the reader will consume it.
When talking about fonts, you will often hear the
terms “serif” and “sans serif.” A serif typeface has little
lines at the terminus of each stroke. A sans serif
typeface does not. Typically, serif fonts are considered
more readable and are good for the body text of your
book. If you want to use sans serif fonts, they are
typically better for chapter or section headers.
The NOOK Press Print Platform Formatting Guide
LAYOUT AND DESIGN