Reading Mobipocket books on your Kindle

When Kindle became available, I quickly became a Kindle obsessed reader. I was very excited when I found out that Kindle purchased Mobipocket, and then shocked and dismayed when I found out I could not open any of my Mobipocket books with my Kindle.

Needless to say, it took me four months, but I figured it out. Yay!! With much help and appreciation for Apprentice Alf’s Blog.

So if you too have purchased Mobipocket books in the past and you now want to read these books on your Kindle, then I have a plan for you.

First Step, convert your Mobipocket books into an EPUB format.

1.)    Download Calibre from  This is an ebook library manager.

2.)    Download the following plugins into your download file and unzip. (On Windows, right-click and “Extract All…”):

  •  I found this link at:—-a-guide-for-the-perplexed/ which is on Apprentice Alf’s Blog.

3.)    Search through these files until you find the one entitled: Calibre_plugins, open it up and search for the plugin entitled K4MobileDeDRM_V03.1_plugin.  Then copy this file directly onto your download file.  This means you isolate it from the tools file so Calibre can find it.

4.)    Open up Calibre, click on preferences on the top right menu bar.

5.)    Under Advanced, click on plugins (it looks like a puzzle piece.)

6.)    On the bottom left you will see a button, load plugin from file, click on it.  (use only this)

7.)    Search for the plugin entitled: : K4MobileDeDRM_V03.1_plugin and select it.

8.)    Under File Type Plugins, you will see a plug in that states that it removes DRM from K4PC and Mac, Kindle Mobi and Topaz files. (Don’t worry it also removes DRM from Mobipocket files), click on this plugin until a customize box comes up.  This is where you enter your Mobipocket PID number for Mobipocket books and your Kindle serial number for your Kindle books.

  •  You Can find your Mobipocket PID number
  •  You can find your Kindle serial number from your Kindle.  Go to: Menu, Settings, then type 411.

9.)    The hard part is over.  Your next step is to Add Books, using the button on the top left. Then select the book you have just added, right click and select convert book.  Voila! like magic you now have your book in a EPUB format.


Second Step; Download these books into your Kindle using Calibre

1.)    Make sure Calibre is open, then plug in your Kindle to your computer.

2.)    On Calibre, open “Preferences” (on far right at top of screen,) under conversion, select “Common Options”, go to “Page Setup” and highlight Kindle and click on “Margins” to bring up the apply button, make sure you click on “Apply”, then click “Close”.

3.)    Now highlight the book you want to send to your Kindle, then click on “Send to Device” which will appear in the middle at the top of the screen.  Note: you will see in the bottom left corner of the screen, “Jobs”, this will show you when the books are being sent over, also on the main screen beside the books name in the library it will show you where on your Kindle the book is stored. This will also let you know that the book has been sent over to your Kindle.

4.)    Eject your Kindle from Calibre, there is a button at the top which shows device, click on down arrow and select “Eject this device”, also be sure to eject your Kindle from your computer.

5.)    Read and enjoy your books on your Kindle.


Once again, thanks to Apprentice Alf’s Blog. For more information please check out his blog at:


*This is only for personal use, provided for people who previously bought their books from Mobipocket and can no longer access them, but still want to receive personal value for the product they purchased. It is not intended for large scale distribution of dedrmed ebooks, which is just wrong.

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