User`s guide

Publishing on Kindle: Guidelines for Publishers
Metadata
Description
specified in the itemref elements (child
of <spine> element in the OPF file).
Valid values are page-spread-left,
page-spread-right, facing-page-
left, facing-page-right, and
layout-blank. The value layout-
blank can be used independently or in
conjunction with other valid values. Default
value is layout-blank.
<meta name="book-type" content="comic"/>
Required for all graphic-novels; optional for
other fixed-layout books. Removes reader
functionality (e.g., share) which may not be
relevant for certain books such as
children’s. Valid values are children or
comic.
Asset Requirements 5.2
When optimized for the 2013 Kindle Fire HD 8.9”, graphic novels should maintain a 1920 x 1200 aspect
ratio. The image resolution will differ depending on the zoom factor required for Kindle Panel View.
However, Amazon recommends planning for a high quality reading experience at 2X magnification.
Images must be in the JPEG format. Amazon recommends using an image resolution of 300 dpi or 300
ppi.
There are four standard zoom factors:
Zoom
Factor
When to Use
Required
Image
Resolution
100%
Avoid using this zoom factor. It offers no magnification and poses an
accessibility challenge for users.
1920 x 1200
pixels
125%
Only use this zoom factor when it is absolutely necessary to enlarge a very
large panel. This allows the user to see a large action scene, but with the
downside of limited enlargement.
2400 x 1500
pixels
150%
This is the default and preferred zoom factor. Use this zoom factor whenever
possible.
2880 x 1800
pixels
250%
Only use this zoom factor on a two page spread image (two physical pages
are displayed at once, and content appears especially small as a result). The
downside is that the enlarged panel only represents a small portion of the
original page.
4800 x 3000
pixels
Image Quality 5.3
Image quality for graphic novels requires that images follow the resolution standards listed in section 5.2,
Asset Requirements, and maintain a consistent aspect ratio. Most importantly, optimize images for clarity
of background art as well as readability of text. These two factors guarantee the highest quality for the
graphic novel format.
Panel View (Region Magnification) 5.4
Panel View for graphic novels offers a unique reading experience. It addresses accessibility and lets
users experience the flow of action on each page in a high-resolution, easy-to-use manner. Users can
Kindle Publishing Guidelines Amazon.com 42