The process of transferring your e-books to a new computer varies depending on the
e-book reader software and the level of copyright protection that each e-book contains.
Please visit the following FAQ / Support section of each e-book reader software
for more information.
■ Adobe Digital Edition FAQ
■ eReader FAQ
■ Sony Reader Support
If you are still experiencing difficulties in the transfer process, the retailer
from which you purchased the e-books should be able to provide you with download
links with a proof of purchase.
E-books have several advantages over print materials:
■ You can conveniently buy e-books from your
computer or reading devices while at home, work, or on the go.
■ Text or words can be searched, cross-referenced
or looked up in a dictionary.
■ Because e-books are compact electronic files,
hundreds of books can be stored in the memory of your computer or reading device.
■ E-books can be stored on several computers
or portable devices, making them accessible from multiple places.
■ If you lose an e-book, you can easily replace
it by re-downloading the title (up to the number of allowable times).
■ Readers who have difficulty reading printed
books can benefit from the adjustment of text size and font.
■ Most e-book reading devices allow reading
in low light — even total darkness — with an included backlight.
■ Although electricity is required for reading,
e-books are not made of paper or ink, making them considerably greener than the
Before downloading your first e-book, you must acquire, install, and register the
appropriate e-book reader software on the computer to which you are downloading
the e-book. To find out which e-book reader software is compatible with your computer,
please review our e-Book Reader Compatibility Chart. If you are ready to download
e-book reader software, visit Downloading e-Book Reader Software.
Adobe Digital Editions is a rich Internet application (RIA) built from the ground
up for digital publishing. It offers a simplified, engaging way to acquire, manage,
and read eBooks and other kinds of digital publications.
No. You need to be online to install Digital Editions and purchase eBooks. After
you install and receive your eBooks, you can use Digital Editions offline. However,
if you have Adobe Reader® 8 or Acrobat® 8 software installed and double-click on
your PDF eBooks, you will be directed to the Digital Editions website. To avoid
this, you should launch Digital Editions and open your eBooks from the library pane.
Adobe Reader is the widely proliferated industry standard application for viewing
and printing Adobe PDF documents. However, Reader supports a variety of workflows
beyond consuming eBooks and other commercially published content, including interactive
forms, digital signatures, and other knowledge worker workflows that involve integration
with other office applications including Acrobat and server solutions such as Adobe
LiveCycle® software. As a result, the power, complexity, and size of Reader are
not optimized for consumer-level eBook reading.
Acrobat is the broadly adopted solution for creating and manipulating Adobe PDF
documents. Sharing a common software architecture with Reader, Acrobat adds powerful
capabilities for document generation and collaboration.
Adobe Digital Editions is a focused, lightweight solution (4MB download on Windows®).
It extends the eBook capabilities integrated with previous versions of Reader and
Acrobat and delivers a simplified, content-centric, consumer-friendly user interface.
It is distributed as a web-based RIA, helping to ensure that users always have the
current version of the software.
Not yet. Digital Editions is an RIA built on the current version of the Adobe Technology
Platform, including Adobe Flash® Player 9 and Flex™ 2 software. AIR, formerly code
named Apollo, is a cross-operating system runtime that allows you to install desktop
Flash. As an RIA that can operate offline and outside the browser, Digital Editions
exemplifies the kind of next-generation application that AIR enables third-party
developers to create. Adobe expects that Digital Editions will ultimately utilize
For some, it might. Digital Editions delivers a lightweight Flash based user experience
for document viewing and adds native PDF and EPUB document-viewing capabilities.
It does not require the translation of content to SWF format. Digital Editions also
adds offline support with content protection technology (DRM). However, it does
not operate inside a browser and requires a Flash Player add-on installation. Customers
that require in-browser operation with the standard Flash Player may wish to continue
to utilize FlashPaper, which remains a component of Adobe Contribute® software.
Digital Editions supports the Sony® Reader. Visit the "Transferring items to a Sony®
Reader" area of
Digital Editions Help for more information on using the Sony® Reader with
Adobe is actively working to support other platforms and devices. Further developments
will be announced when available.
Digital Editions is also available in French, German,Italian, Spanish, Dutch, Brazilian
Portuguese, Japanese, Korean, Chinese Simplified and Chinese Traditional. Other
languages will be released over time.
Periodically, Adobe updates Digital Editions with new features or fixes to minor
problems. These updates help ensure that Digital Editions works properly, and they
may contain important changes to security. The distributed RIA architecture of Digital
Editions and its associated content protection services requires that Internet-connected
users always use the latest version, similar to a browser-based web application.
This RIA model also allows Adobe to deliver a higher level of security and functionality.
Not at the present time. The focus is to support an immersive, content-centric experience
with eBooks and other digital publications. The lack of distracting web browser
"chrome" offers a simpler, more engaging user experience. However, we recognize
that certain workflows will benefit from native file document-viewing capabilities
embedded within a larger browser-based web application, and we are evaluating options
and timing for delivering this capability to content publishers.
PDF/A and EPUB
are the two publication-level content types. EPUB is a file format standard created
by the International Digital Publishing
Forum based on a profile of XHTML 1.1 and Zip-based packaging. SWF content and common
image file types can be referenced within PDF- and EPUB-based
Digital Editions utilizes Adobe PDF technology that has been optimized for small
code size and lower system requirements. This technology has shipped in hundreds
of millions of mobile phones and other embedded devices. It is optimized for performance
and onscreen readability, rather than graphic arts or prepress-level fidelity. As
a result, some minor differences in graphics and font rendering are to be expected.
In addition, the Digital Editions PDF implementation does not support several enterprise-oriented
PDF features. These features are not typically used in PDF-based eBooks, and if
present, they are ignored but may cause certain documents to render incorrectly.
Digital Editions supports a superset of ISO standard 19005-1 (PDF/A). PDF/A is designed
to support more secure, long-term information archiving; it is based on a subset
of PDF 1.4 (the version of PDF supported by Acrobat 5.0). Additional PDF capabilities
in Digital Editions beyond PDF/A include basic encryption, DRM-based encryption,
JBIG2 image compression, transparency, and compressed object streams. The intention
is to support in Digital Editions those PDF features reasonably needed by eBooks
and other commercially published content, balancing 100% coverage with a focus on
small size and high performance. Also, certain capabilities defined in PDF may be
delivered in Digital Editions via SWF files or the new reflow-centric EPUB format.
and JPEG 2000 image compression are not supported by Digital Editions.
No, the current release of Digital Editions does not support JPEG 2000. Therefore,
a few books do not render (for example, all Google Books and Google eBook illustrations,
whether color or greyscale, some comic book editions, and some technical book illustrations).
The Digital Editions team is working to support JPEG 2000 and is planning on releasing
it with the next version of Digital Editions.
Digital Editions supports bookmarks, highlights, and text notes via its bookmarks
panel. These annotations are stored in an open XML format separately from publications
to enable seamless annotation across PDF- and EPUB-based publications. They will
set the stage for future social networking features (such as sharing annotations
within a community of readers).
Yes. Acrobat 8 supports creating content that conforms to the PDF/A profile. PDF/A
documents work with Digital Editions, as well as with Acrobat and Reader. However,
Acrobat 8 and Reader 8 no longer directly support the Adobe Content Server eBook
DRM solution. Instead, they rely on integration with Digital Editions to enable
users to view PDF files protected by Adobe Content Server, including documents protected
with the new Adobe Digital Experience Production Technology (ADEPT) content protection
The procedure for getting data from Windows XP to Windows Vista during an upgrade
is posted on Microsoft's Windows XP site.
No, Digital Editions does not support any access to the Internet through Microsoft
Yes, Digital Editions is a free product.
Yes. Corporations, government agencies, and educational institutions can distribute
Digital Editions internally on an intranet site or a local network. The stand-alone
installer and user documentation is available on the Digital Publishing Technology
Center. When you download the stand-alone installer, you are prompted to review
and accept a License Agreement.
No, Digital Editions is not licensed for distribution on external websites. If you
would like to provide a link from your website to access the Adobe Digital Editions
download on adobe.com, you may use the Get Digital Editions web logo. Please visit
and Trademark Guidelines site for more information.
EPUB is the file extension of an XML format for reflowable digital books and publications.
It consists of three open standards — Open Publication Structure (OPS), Open Packaging Format (OPF), and Open Container Format (OCF) — produced by the International
Digital Publishing Forum (IDPF). EPUB allows publishers to produce and send a single
digital publication file through distribution and offers consumers interoperability
between software/hardware for unencrypted reflowable digital books and other publications.
In addition, EPUB includes capabilities for scalable vector graphics (SVG) and structured
tables of contents, and it incorporates compatibility with the related DAIST DTBook
standard for accessible content.
Adobe offers a new content protection service, Adobe Content Server 4. Adobe Content
Server 4 is a robust server solution that digitally protects PDF and reflowable
EPUB content for Adobe Digital Editions and supported mobile devices, including
the Sony® Reader. Easy to integrate into existing systems using industry standard
technologies, Content Server allows you to host, manage, and deliver files from
your existing infrastructure to Digital Editions users. Visit the Content Server product site for further information.