Frequently Asked Questions
Q: What file formats can the Kindle Previewer accept?
A: Kindle Previewer can display and validate books in the Mobi and KF8 formats. It also accepts an EPUB source and auto-converts it for preview.
Q: What devices and applications can I validate on the Kindle Previewer?
A: Kindle Previewer lets you validate the content formatting for Kindle books created for the Fire HD, Fire HDX, Kindle Voyage, Kindle DX, Kindle for iPhone and Kindle for iPad.
Q: Will the file created using Kindle Previewer work on all Kindle devices and apps?
A: Yes. The files created using Kindle Previewer will continue to work on all Kindle devices and apps.
Q: How do I install and launch Kindle Previewer?
Q: What previewing features does the Kindle Previewer support?
A: Kindle Previewer supports a number of features like auto flip, image flip, etc. A list of Kindle Previewer features is included in the
Kindle Previewer documentation
Q: How do I preview how my books look in KF8?
A: Kindle Fire is the first Kindle device to support KF8. Please select the Fire option in the “Devices” within Kindle Previewer to validate KF8 books.
Q: Why do I get an X11 install prompt when I try to preview a book in Kindle Voyage mode on Mac OSX 10.8 (Mountain Lion)?
A: X11 is a pre-requisite to preview in Kindle Voyage mode on a Mac OSX system. You will see a prompt to install X11( if it’s not installed) on Kindle Voyage mode. X11 is needed only for Kindle Voyage mode and is not required for other device modes.
Q: Kindle Previewer application fails to launch in my Windows 7/Vista 32 bit machine, how to get Kindle Previewer working?
A: Set the compatibility mode for Kindle Previewer to Windows XP SP3 so that it launches correctly. To set the compatibility mode, please locate the Kindle Previewer shortcut in your Start Menu. Right click on it and click on Properties. In the Compatibility tab, click on the checkbox labeled "Run this program in compatibility mode for:" and select "Windows XP (Service Pack 3)" from the drop down list.
Q: When trying to launch Kindle Previewer in Mac OSX 10.8 and above, I get the error message "Kindle Previewer can't be opened because the identity of the developer cannot be confirmed." What do I need to do to get Kindle Previewer working?
A: Hold down the "Control" key while clicking the "Kindle Previewer" icon in the Dock or in a Finder window. Click "Open" in the menu that appears. A dialog window displays the original error message, with the additional message that clicking "Open" will authorize this program to run on this Mac. Click the "Open" button in the dialog window.
Q: I am having trouble previewing my books in Kindle Previewer 2.94. Is there a way for me to get improve this situation?
A: There is a new patch for KPR 2.94 that improves the ability to preview books. After installing KPR 2.94, please install
patch. Note that for Authors whose MacOS installations include X11.app version 2.7.8 or higher, it’s not possible to preview eBooks using the E-Reader simulations.