您必须将其拖动到文件系统 (桌面、应用程序，任何位置)上的某个文件夹。. 要以不同的语言显示 calibre，请打开首选项（按⌘+P）并选择您的语言。. 如果您使用的 MacOS 版本早于10.14（Mojave），则在您的计算机上可以正常运行的 calibre 最大版本号是3.48版，点此获取。. 如果您使用的是 MacOS 10.8（Mountain Lion），则在您的计算机上可以正常运行的 calibre 最大版本号. Calibre is a free open source ebook library manager. It’s easy to use and versatile, providing a number of basic and advanced features and options. Free DRM removal is one of them. Download and install Calibre on your PC or Mac. Download Calibre plugin DeDRM from GitHub. There are several versions available.
- Choose the type of computer on which you plan to use calibre, below: Windows; macOS; Linux; Portable; Windows 64bit; Learn how to work with calibre on a mobile phone/tablet. Signatures for all the calibre installer files are here.
- Calibre is an ebook reader for mac OS, Windows, and Linux. If for any reason you want to remove the Calibre ebook from your computer, read on to learn how. Today we will look at two ways to uninstall Calibre on a Mac.
calibre has a highly modular design. Various parts of it can be customized. You can learn how to createrecipes to add new sources of online content to calibre in the Section Adding your favorite news website. Here, you will learn,first, how to use environment variables and tweaks to customize calibre’s behavior, and then how tospecify your own static resources like icons and templates to override the defaults and finally how touse plugins to add functionality to calibre.
CALIBRE_CONFIG_DIRECTORY- sets the folder where configuration files are stored/read.
CALIBRE_TEMP_DIR- sets the temporary folder used by calibre
CALIBRE_CACHE_DIRECTORY- sets the folder calibre uses to cache persistent data between sessions
CALIBRE_OVERRIDE_DATABASE_PATH- allows you to specify the full path to metadata.db. Using this variable you can have metadata.db be in a location other than the library folder. Useful if your library folder is on a networked drive that does not support file locking.
CALIBRE_DEVELOP_FROM- used to run from a calibre development environment. See Setting up a calibre development environment.
CALIBRE_OVERRIDE_LANG- used to force the language used by the interface (ISO 639 language code)
CALIBRE_TEST_TRANSLATION- used to test a translation .po file (should be the path to the .po file)
CALIBRE_NO_NATIVE_FILEDIALOGS- causes calibre to not use native file dialogs for selecting files/folders.
CALIBRE_NO_NATIVE_MENUBAR- causes calibre to not create a native (global) menu on Ubuntu Unity and similar linux desktop environments. The menu is instead placed inside the window, as is traditional.
CALIBRE_USE_SYSTEM_THEME- by default, on Linux, calibre uses its ownbuiltin Qt style. This is to avoid crashes and hangs caused by incompatibilitiesbetween the version of Qt calibre is built against and the system Qt. Thedownside is that calibre may not follow the system look and feel. Ifyou set this environment variable on Linux, it will cause calibre to usethe system theme – beware of crashes and hangs.
CALIBRE_SHOW_DEPRECATION_WARNINGS- causes calibre to print deprecation warnings to stdout. Useful for calibre developers.
CALIBRE_NO_DEFAULT_PROGRAMS- prevent calibre from automatically registering the filetypes it is capable of handling with Windows.
CALIBRE_USE_DARK_PALETTE- set it to
1to have calibre use dark colors and
0for normal colors (ignored on macOS).On Windows 10 in the absence of this variable, the Windows system preference for dark colors is used.
SYSFS_PATH- Use if sysfs is mounted somewhere other than /sys
https_proxy- used on Linux to specify an HTTP(S) proxy
See How to set environment variables in Windows. If you are on macOSyou can set environment variables by creating the
~/Library/Preferences/calibre/macos-env.txt and puttingthe environment variables one per line in it, for example:
Tweaks are small changes that you can specify to control various aspects of calibre’s behavior. You can change them by going to Preferences->Advanced->Tweaks.The default values for the tweaks are reproduced below
calibre has direct support for icon themes, there are several icon themesavailable for calibre, that you can use by going to Preferences → Interface → Look & Feel → Change Icon theme.The icon themes use the same mechanism as described below for overriding static resources.
/Applications/calibre.app/Contents/Resources/resources/. On Linux, ifyou are using the binary installer from the calibre website it will be
/opt/calibre/resources. These paths can change depending on where youchoose to install calibre.
You should not change the files in this resources folder, as your changes willget overwritten the next time you update calibre. Instead, go toPreferences → Advanced → Miscellaneous and clickOpen calibre configuration folder. In this configuration folder, create asub-folder called resources and place the files you want to override in it.Place the files in the appropriate sub folders, for example place images in
resources/images, etc. calibre will automatically use your custom filein preference to the built-in one the next time it is started.
For example, if you wanted to change the icon for the Remove booksaction, you would first look in the built-in resources folder and see that therelevant file is
resources/images/remove_books.png. Assuming you have analternate icon in PNG format called
my_remove_books.png you would save it inthe configuration folder as
resources/images/remove_books.png. All theicons used by the calibre user interface are in
resources/images andits sub-folders.
If you have created a beautiful set of icons and wish to share them with othercalibre users via calibre’s builtin icon theme support, you can easily packageup your icons into a theme. To do so, go toPreferences → Miscellaneous → Create icon theme, select the folderwhere you have put your icons (usually the
resources/images folder inthe calibre config folder, as described above). Then fill up the thememetadata and click OK. This will result in a ZIP file containing the themeicons. You can upload that to the calibre forum at Mobileread and then I willmake your theme available via calibre’s builtin icon theme system.
calibre has a very modular design. Almost all functionality in calibre comes in the form of plugins. Plugins are used for conversion, for downloading news (though these are called recipes), for various components of the user interface, to connect to different devices, to process files when adding them to calibre and so on. You can get a complete list of all the built-in plugins in calibre by going to Preferences → Advanced → Plugins.
You can write your own plugins to customize and extend the behavior of calibre. The plugin architecture in calibre is very simple, see the tutorial Writing your own plugins to extend calibre’s functionality.
This article talks about how to do Kindle DRM removal on Mac and Windows. Kindle books purchased from Amazon are protected by the DRM (Digital Rights Management) technology. In other words, you can only read them on a Kindle device or a Kindle app, making it impossible to enjoy your purchased books on ebook readers or apps other than the Kindle ones. By using DRM removal software, you can make the impossible possible.
Below are step-by-step instructions on how to easily remove DRM from Kindle books with Epubor Ultimate and Calibre.
- Remove DRM protection from Kindle ebooks
- Support Kindle for Mac/PC and different Kindle e-readers
- Convert Kindle books to EPUB, MOBI, AZW3, TXT and PDF
- Support 13 input ebook formats
- Can batch process multiple books
- Also support ebooks bought from other popular ebook stores
- Also remove Nook DRM
- Easy to use
- Available for Windows and macOS
Method 1. Kindle DRM Removal with Epubor Ultimate
It’s easy and effective to remove DRM protection from Kindle books using Epubor Ultimate.
Step 1. Download and install the software on your Mac or PC.
Step 2. Launch the software. And it will automatically detect the ebooks that have been downloaded to Kindle for PC/Mac or on the Kindle e-reader connected to your computer via USB. The books will be listed in the left sidebar.
Step 3. When you click a book in the sidebar, the DRM removal process will start. Once it is finished, the now DRM-free Kindle book will appear in the window on the right. To decrypt multiple books, just repeat the process.
By clicking the folder icon in the bottom right corner of the interface, you will open the folder where the decrypted Kindle ebooks are stored.
This Kindle DRM removal software program also comes with a conversion feature. If needed, you can also use it to convert the now-decrypted books to EPUB, MOBI, PDF or other desired formats.
A guide to downloading Kindle books to your computer
The guide is important for a successful Kindle DRM removal.
Before performing the steps above, you of course need to get a Kindle book purchased and downloaded first. There is more than one way to do this. Here I talk about one of them.
Step 1. Download Kindle for PC 1.17, regardless of the latest version available. Make sure you get the installer from a source that you trust. Install it.
If you have already installed a higher version such as 1.26 or 1.25, you need to downgrade it.
Step 2. Launch it. From the menu bar, select Tools > Options > General. Uncheck the box Automatically install updates when they are available without asking me. Click the Save button.
Step 3. When you are buying a Kindle book from Amazon, click the Deliver to drop-down list and choose to send the book to your Kindle for PC.
Calibre Mac Os
Step 4. In Kindle for PC, click the refresh icon. Go to the Downloaded tab to find the downloaded book, which is DRM-protected.
Now you can use the recommended software to remove DRM from the Kindle book.
With regard to Kindle AZW DRM removal, Epubor Ultimate suggests that users downgrade to the desktop Kindle app to version 1.24 or earlier. But it still doesn’t work in some cases. Version 1.17 is recommended.
Calibre Macos Catalina
The steps are similar for macOS users.
What does Epubor Ultimate do?
- Remove DRM protection from Kindle books
- Support Kindle for PC/Mac and different Kindle models
- Support 13 input formats such as AZW, AZW3, KFX, EPUB, MOBI, etc.
- Provide 5 output formats for conversion
- Allow batch processing
- Support books purchased from Amazon, Nook, Google Play, Kobo and other popular sources
- Also remove Nook DRM
- Automatic detection of ebooks and devices
- Easy to use even for beginners
Method 2. Kindle DRM Removal with Calibre
If you are a fan of ebooks, you may have already known Calibre or had it on your computer. Calibre is a free open source ebook library manager. It’s easy to use and versatile, providing a number of basic and advanced features and options. Free DRM removal is one of them.
Step 1. Download and install Calibre on your PC or Mac. Launch it.
Step 2. Download Calibre plugin DeDRM from GitHub. There are several versions available. Make sure to choose a version that suits you. For example, version 6.7.0, the latest version currently, doesn’t work with Calibre versions requiring Python 3 for plugins.
Step 3. Unzip the zipped file you have downloaded.
Step 4. In Calibre, open Preferences. Navigate to Advanced and click Plugins, which will bring up the Plugins window.
Step 5. Click Load plugin from file in the bottom right corner. Select DeDRM_plugin.zip and click Open.
Step 6. The Are you sure dialog box will appear. Click Yes. Now the Calibre Kindle DRM removal plugin should be successfully installed.
Step 7. Click the Apply button in at the bottom of the window to save changes.
Step 8. Find the Kindle AZW or KFX ebook that you have downloaded to your desktop Kindle app. Add the ebook to Calibre by dragging and dropping or by clicking the Add books button in the menu bar.
- With Kindle for PC, the default location of downloaded books is “C:Usersyour user nameDocumentsMy Kindle Content“.
- For Mac users who install Kindle for Mac from the Mac App Store, the default location is “/Users/your user name/Library/Containers/com.amazon.Kindle/Data/Library/Application Support/Kindle/My Kindle Content“. As for other download sources, it will be “/Users/your user name/Library/Application Support/Kindle/My Kindle Content“.
Once the Kindle book is added to your Calibre library, the DRM encryption will be removed simultaneously, and you should have no problem viewing and manipulating it.
On a side note, some Calibre users use the method on rented Kindle books and succeed, but it fails in many cases. It’s recommended that one only remove DRM protection from books one purchases and owns.
Kindle DRM removal failed?
What if it’s not working?
Calibre 3.48 Download
In some cases, people still get the This book has DRM message after completing these steps. There are two common fixes.
- Check out the guide provided in the first method and downgrade to the right version.
- Fix it by installing another plugin. Open the Calibre Plugins window and click the Get New plugins button. Enter KFX Input in the Filter by name box. Click Install and click OK. Restart Calibre.
Above are the common ways to do easy Kindle DRM removal on Mac and Windows. We remove encryption for the sake of a less restricted reading experience. For heavy users of ebooks and e-readers, the Epubor DRM removal software is recommended due to great performance, multiple supported input/output formats and the support for all popular ebook stores.Phillips, Nina
How to Convert AZW3 to PDF and Remove DRM (Free Online Included)
With the easy availability of eBooks on the websites today, we prefer to view books on Kindle device. While with [...]