This plugin removes DRM from ebooks when they are imported into calibre. If you already have DRMed ebooks in your calibre library, you will need to remove them and import them again.

It is a forked version created by NoDRM, based on the original plugin by Apprentice Alf and Apprentice Harper.

You have obviously managed to install the plugin, as otherwise you wouldn’t be reading this help file. However, you should also delete any older DRM removal plugins, as this DeDRM plugin replaces the five older plugins: Kindle and Mobipocket DeDRM (K4MobiDeDRM), Ignoble Epub DeDRM (ignobleepub), Inept Epub DeDRM (ineptepub), Inept PDF DeDRM (ineptepub) and eReader PDB 2 PML (eReaderPDB2PML).

This plugin (in versions v10.0.0 and above) will automatically replace the older 7.X and below versions from Apprentice Alf and Apprentice Harper.

On Windows and Mac, the keys for ebooks downloaded for Kindle for Mac/PC and Adobe Digital Editions are automatically generated. If all your DRMed ebooks can be opened and read in Kindle for Mac/PC and/or Adobe Digital Editions on the same computer on which you are running calibre, you do not need to do any configuration of this plugin. On Linux, keys for Kindle for PC and Adobe Digital Editions need to be generated separately (see the Linux section below).

If you are using the DeACSM / ACSM Input Plugin for Calibre, the keys will also automatically be dumped for you.

If you have other DRMed ebooks, you will need to enter extra configuration information. The buttons in this dialog will open individual configuration dialogs that will allow you to enter the needed information, depending on the type and source of your DRMed eBooks. Additional help on the information required is available in each of the the dialogs.

If you have used previous versions of the various DeDRM plugins on this machine, you may find that some of the configuration dialogs already contain the information you entered through those previous plugins.

When you have finished entering your configuration information, you must click the OK button to save it. If you click the Cancel button, all your changes in all the configuration dialogs will be lost.

If you find that it’s not working for you , you can save a lot of time by trying to add the ebook to Calibre in debug mode. This will print out a lot of helpful info that can be copied into any online help requests.

Open a command prompt (terminal window) and type “calibre-debug -g” (without the quotes). Calibre will launch, and you can can add the problem ebook the usual way. The debug info will be output to the original command prompt (terminal window). Copy the resulting output and paste it into the comment you make at my blog.

Note: The Mac version of Calibre doesn’t install the command line tools by default. If you go to the ‘Preferences’ page and click on the miscellaneous button, you’ll find the option to install the command line tools.

NoDRM for a bunch of updates and maintenance since November 2021, and the Readium LCP support
The Dark Reverser for the Mobipocket and eReader scripts
i♥cabbages for the Adobe Digital Editions scripts
Skindle aka Bart Simpson for the Amazon Kindle for PC script
CMBDTC for Amazon Topaz DRM removal script
some_updates, clarknova and Bart Simpson for Amazon Topaz conversion scripts
DiapDealer for the first calibre plugin versions of the tools
some_updates, DiapDealer, Apprentice Alf and mdlnx for Amazon Kindle/Mobipocket tools
some_updates for the DeDRM all-in-one Python tool
Apprentice Alf for the DeDRM all-in-one AppleScript tool
Apprentice Alf for the DeDRM all-in-one calibre plugin
And probably many more.
For additional help read the FAQs at NoDRM’s GitHub repository (or the corresponding FAQs at Apprentice Harpers’s GitHub repository). You can open issue reports related to this fork at NoDRM’s GitHub repository.
Linux Systems Only
Generating decryption keys for Adobe Digital Editions and Kindle for PC
If you install Kindle for PC and/or Adobe Digital Editions in Wine, you will be able to download DRMed ebooks to them under Wine. To be able to remove the DRM, you will need to generate key files and add them in the plugin’s customisation dialogs.

To generate the key files you will need to install Python and PyCrypto under the same Wine setup as your Kindle for PC and/or Adobe Digital Editions installations. (Kindle for PC, Python and Pycrypto installation instructions in the ReadMe.)

Once everything’s installed under Wine, you’ll need to run the adobekey.pyw script (for Adobe Digital Editions) and kindlekey.pyw (For Kindle for PC) using the python installation in your Wine system. The scripts can be found in Other_Tools/Key_Retrieval_Scripts.

Each script will create a key file in the same folder as the script. Copy the key files to your Linux system and then load the key files using the Adobe Digital Editions ebooks dialog and the Kindle for Mac/PC ebooks dialog.

No cate

Battery Memory Effect

“Memory Effect” is a condition of reduced battery performance (and eventual failure) due to a battery only using those cells that are fully discharged and charged on a regular basis. In other words, if on a regular basis a NiCd or NiMH battery is only partially discharged before being recharged, it ” forgets” that it has usable capacity to further discharge all the way down. The result is degraded battery performance and shorter battery life because the battery is using less than it’s true full capacity.

Li-ion batteries do not develop the “memory effect”. NiMH batteries, while considerably better than their NiCd counterparts, are prone to developing “memory effect.” However, proper care and conditioning over the life of a NiMH battery will significantly reduce the potential negative impacts.

No cate

How to backup Google Docs and Spreadsheets

As someone who usually work on three different PCs and a laptop, Google Docs and Spreadsheets very convenient, due to the fact i can access my documents from each of my computers.

As time went by, i started to accumulate lots of docs and spreadsheets in Google account, and i asked myself how should i backup them. I knew i could open each and every document and just save it as a Microsoft Excel or Microsoft Word document, as well as a PDF document, but i was looking for a more powerful method.

I searched a bit and found a nice program Google Docs Backup that helped me to accomplish my task.

So here’s what you should do in order to backup your Google docs and Spreadsheets:

  1. Run Google docs backup.
  2. Input your gmail account or your google app account.
  3. Select preferred location in Hard drive to store your docs and spreadsheets.
  4. Click Backup

No cate

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