An Adobe EPUB eBook is a digital version of a print book that has been optimized for on-screen reading. The text in an EPUB eBook is reflowable, which means that you can change the font, resize the text, or alter the size of your display, and the text will rewrap itself to fit the available viewing area. Adobe EPUB eBooks also support embedded content, allowing, for instance, a Flash video to be embedded within an eBook.
Adobe Digital Editions is a free eBook reader used to read DRM-protected EPUB and PDF files. Adobe Digital Editions extends the eBook capabilities that were integrated in previous versions of Adobe Reader and Adobe Acrobat®, and delivers a simplified, content-centric, user-friendly interface.
How is an Adobe EPUB eBook different from a PDF file?
Adobe EPUB eBooks offer reflowable text, which means that you can change the font, resize the text, or alter the size of your display and the text of the Adobe EPUB eBook 'reflows' to fill the available view area. This makes Adobe EPUB eBooks the optimal choice for reading eBooks on small screens. While some PDFs are reflowable on some devices (such as the Sony Reader), one of the main strengths of the PDF format is its ability to preserve the layout of complex documents.
Access and organize eBooks using the Library view. Organize an eBook collection using the default bookshelves and create custom bookshelves. Use the thumbnail view to display cover images of eBooks, or the list view to sort by title, author, date added to the library, date last accessed, publisher, number of pages, or status.
Multimedia Content
Like Adobe Reader, Adobe Digital Editions plays video and audio content embedded in eBooks, such as music embedded within a book of sheet music or an animated map included in a geography text (with appropriate hardware and software installed).
Simplified Interface
Adobe Digital Editions provides a user-friendly interface that facilitates fast and easy access to eBooks and bookmarks.
Whereas 'Adobe Digital Editions' refers to a specific application, 'digital edition' is another term for 'eBook'. A digital edition is a PDF or EPUB file that is DRM-protected using Adobe DRM (Digital Rights Management). DRM allows publishers to protect digital content from unlawful distribution and to set certain restrictions on content, such as limits on copying and printing.
Activation of Adobe Digital Editions allows you to read DRM-protected Adobe eBooks. The first time that you open Adobe Digital Editions, you must activate the program. Adobe Digital Editions can be activated anonymously, or by using an Adobe ID.
Anonymous activation allows you to read DRM-protected Adobe eBooks on your computer only.
If you use anonymous activation, note these limitations…
You will only be able to read a downloaded Adobe eBook on a single computer.
You will not be able to download an Adobe eBook on more than one computer. After the initial download of an Adobe eBook, subsequent downloads of that title can only be completed on the same computer.
You will not be able to transfer Adobe eBooks to a Sony Reader.
You can decide to activate using an Adobe ID at any time. However, if you activate Adobe Digital Editions with an Adobe ID which has already been used to activate Adobe Digital Editions on another computer, the Adobe eBooks you originally downloaded when using anonymous activation will no longer work.
Activating Adobe Digital Editions using an Adobe ID allows you to read DRM-protected eBooks on multiple computers as well as transfer Adobe eBooks to supported Sony Readers with v1.1 firmware (or newer) installed. Note that in order to transfer Adobe eBooks to Sony Reader devices, your device will need to be activated using the same Adobe ID as Adobe Digital Editions.
If you use an Adobe ID…
You will be able to download an Adobe eBook on computers that have been activated with the same Adobe ID (up to 6 computers/devices can be activated using the same Adobe ID).
After the initial download of an Adobe eBook, subsequent downloads of that title can be completed on computers activated with the same Adobe ID.
You will be able to transfer Adobe eBooks to a Sony Reader that has been activated with the same Adobe ID.
Yes. The first time that you open Adobe Digital Editions, you must activate the program. Adobe Digital Editions can be activated anonymously, or by using an Adobe ID.
Anonymous activation allows you to read DRM-protected Adobe eBooks on your computer only.
If you use anonymous activation, note these limitations…
You will only be able to read a downloaded Adobe eBook on a single computer.
You will not be able to download an Adobe eBook on more than one computer. After the initial download of an Adobe eBook, subsequent downloads of that title can only be completed on the same computer.
You will not be able to transfer Adobe eBooks to a Sony Reader.
You can decide to activate using an Adobe ID at any time. However, if you activate Adobe Digital Editions with an Adobe ID which has already been used to activate Adobe Digital Editions on another computer, the Adobe eBooks you originally downloaded when using anonymous activation will no longer work.
Activating Adobe Digital Editions using an Adobe ID allows you to read DRM-protected eBooks on multiple computers as well as transfer Adobe eBooks to supported Sony Readers with v1.1 firmware (or newer) installed. Note that in order to transfer Adobe eBooks to Sony Reader devices, your device will need to be activated using the same Adobe ID as Adobe Digital Editions.
If you use an Adobe ID…
You will be able to download an Adobe eBook on computers that have been activated with the same Adobe ID (up to 6 computers/devices can be activated using the same Adobe ID).
After the initial download of an Adobe eBook, subsequent downloads of that title can be completed on computers activated with the same Adobe ID.
You will be able to transfer Adobe eBooks to a Sony Reader that has been activated with the same Adobe ID.
Should I activate Adobe Digital Editions anonymously or with an Adobe ID?
Activating Adobe Digital Editions using an Adobe ID allows you to do more with Adobe eBooks, such as downloading them on multiple computers and transferring them to supported portable devices. However, this is a matter of personal preference. Before deciding, please consider the following…
If you use anonymous activation, note these limitations…
You will only be able to read a downloaded Adobe eBook on a single computer.
You will not be able to download an Adobe eBook on more than one computer. After the initial download of an Adobe eBook, subsequent downloads of that title can only be completed on the same computer.
You will not be able to transfer Adobe eBooks to a Sony Reader.
You can decide to activate using an Adobe ID at any time. However, if you activate Adobe Digital Editions with an Adobe ID which has already been used to activate Adobe Digital Editions on another computer, the Adobe eBooks you originally downloaded when using anonymous activation will no longer work.
If you use an Adobe ID…
You will be able to download an Adobe eBook on computers that have been activated with the same Adobe ID (up to 6 computers/devices can be activated using the same Adobe ID).
After the initial download of an Adobe eBook, subsequent downloads of that title can be completed on computers activated with the same Adobe ID.
You will be able to transfer Adobe eBooks to a Sony Reader that has been activated with the same Adobe ID.
How do I activate Adobe Digital Editions anonymously?
If you prefer to activate Adobe Digital Editions anonymously…
Open Adobe Digital Editions.
The 'Setup Assistant' dialog box is displayed.
Click 'Continue'.
The 'Authorize Computer' screen is displayed.
Select the 'Don't Authorize Computer' option.
Click 'Activate'.
You are prompted to confirm that you do not want to activate Adobe Digital Editions using an Adobe ID at this time.
Select 'Continue'.
Click 'Finish' to close the 'Setup Assistant' dialog box.
If you choose not to activate Adobe Digital Editions using an Adobe ID at this time, you may do so later.
To activate Adobe Digital Editions at a later time using an Adobe ID…
Open Adobe Digital Editions.
Select Library > Authorize Computer….
The 'Authorize Computer' dialog box is displayed.
In the appropriate fields, enter the email address and password for your Adobe ID.
If you do not already have an Adobe ID, click 'get an Adobe ID online' and follow the instructions to sign up for an Adobe ID.
Click 'Activate'.
Your computer is activated to your Adobe ID.
Click 'Finish' to close the 'Setup Assistant' dialog box.
How do I activate Adobe Digital Editions using an Adobe ID?
To activate Adobe Digital Editions using an Adobe ID…
Open Adobe Digital Editions.
The 'Setup Assistant' dialog box is displayed.
Click 'Continue'.
The 'Authorize Computer' screen is displayed.
In the appropriate fields, enter the email address and password for your Adobe ID.
If you do not already have an Adobe ID, click 'get an Adobe ID online' and follow the instructions to sign up for an Adobe ID.
Click 'Activate'.
Your computer is activated to your Adobe ID.
Click 'Finish' to close the 'Setup Assistant' dialog box.
How do I activate a supported Sony® Reader using an Adobe ID?
To activate your supported Sony Reader using an Adobe ID…
Note that both Adobe Digital Editions and the Sony Reader must be activated with the same Adobe ID to transfer DRM-protected Adobe eBooks to the device.
Please note that the display of Adobe eBooks on the Sony Reader may vary, depending on the nature of the content.
To transfer Adobe eBooks using Adobe Digital Editions…
Open Adobe Digital Editions.
Click on the eBook title you wish to transfer to your Sony Reader.
Drag the eBook title to the Sony Reader icon in the left pane of Adobe Digital Editions.
The 'Copy Documents' dialog box is displayed and the title is transferred.
When transfer is complete the 'Copy Documents' dialog box closes. You can now disconnect the Sony Reader and enjoy the eBook title on-the-go.
Can I transfer Adobe eBooks to other computers using Adobe Digital Editions?
If you have activated Adobe Digital Editions anonymously, you are only able to read a downloaded Adobe eBook on a single computer.
If you have activated Adobe Digital Editions using an Adobe ID, you are not able to transfer an Adobe eBook title to another computer, but you can download the Adobe eBook on another computer that is activated with the same Adobe ID.
Adobe Digital Editions is prompting me to upgrade. What should I do?
To ensure that Adobe Digital Editions functions properly, you should upgrade Adobe Digital Editions when prompted. Failure to upgrade Adobe Digital Editions may result in the inability to download or open the Adobe eBooks available at this site. To download the newest version of Adobe Digital Editions, click here.
