如果您是电子书的粉丝，您可能已经听说过Calibre，这是一款开源、跨平台的电子书管理工具(eBook management tool)，可将您的 PC 变成一个虚拟图书馆。您可以使用它在 PC 上阅读电子书、管理Kindles等其他设备或对电子书进行修改。
很少有电子书管理工具可以在功能上与Calibre 电子书(Calibre eBook)阅读器相媲美——例如，它比亚马逊自己的台式电脑Kindle 应用程序做得更多。(Kindle app)Calibre是帮助您管理电子书的绝佳工具，因此这里有一些提示和技巧可以帮助您充分利用它。
导出您的 Calibre 电子书库(Exporting Your Calibre eBook Library)
如果您担心您的电子书收藏(eBook collection)，或者您只是想与其他用户分享，您可以使用 Calibre 自己的导出工具导出您的(export tool)Calibre 电子(Calibre eBook)书库。您也可以使用相同的工具导入现有库。
- 为此，请打开 Calibre 并按Calibre library > Export/Import all calibre data。
- 在Export/Import all calibre data窗口中，按Export all your calibre data选项。
- 选择您的电子书库——大多数(eBook library—most)用户只有一个Calibre 库(Calibre library)，因此应该已经选择了它。按确定(OK)继续。您需要选择一个位置来保存您的库，并且您需要选择一个空目录来执行此操作。
导出电子书库(eBook library)后，您可以按照相同的步骤将其导入另一个Calibre 安装——只需(Calibre installation—just)在Export/Import all calibre data窗口中按导入以前导出的数据(Import previously exported data)，然后选择您的数据。
创建 Cloud Storage Calibre 库(Creating a Cloud Storage Calibre Library)
如果您想使用Google Drive等云存储服务存储您的(storage service)电子书(Ebooks)，您可以将您的收藏导出到那里。这是备份您的电子书收藏(eBook collection)以及与其他Calibre 用户共享的好方法——非常(Calibre users—perfect)适合家庭电子书收藏(eBook collection)。
为此，只需按Calibre Library > Switch/create library. 在选择您的口径库(Choose your calibre library)窗口中，选择与您的云存储服务(storage service)同步的位置（例如，在Dropbox 同步(Dropbox sync)文件夹中）。
这会将文件夹同步到Dropbox，允许您在多个Calibre安装中使用相同的库。
创建网络共享口径电子书库(Creating a Network Shared Calibre eBook Library)
Calibre包含一项功能，可以将其转变为Calibre所谓的内容服务器。(content server.)这将激活 Calibre 的内置网络服务器(web server)，允许您在网络（或网络，如果您将设备设置为允许远程连接）上的任何其他设备上查看您的图书馆，以及直接从图书馆下载电子书以阅读在Calibre 电子书(Calibre eBook)阅读器中。
设置共享库很简单——只需按Connect/share > Start content server即可启用此功能。这将立即打开内容服务器(content server)供您访问。
再次按下Connect/share按钮，您可以快速查看在另一台设备上查看库所需的IP 地址和端口。(IP address and port)通常，这是http://ip.address:8080，将ip.address替换为您 PC 的IP 地址(IP address)，端口8080作为 Calibre 使用的标准Web 端口(web port)。
使用 Calibre 删除电子书 DRM(Removing eBook DRM using Calibre)
DRM（或数字版权管理(Digital Rights Management)）是一种反盗版措施，用于将内容锁定给购买者。游戏(Games)、电影和电子书都是发现DRM的常见场所，尤其是如果您从Amazon Kindle 商店(Amazon Kindle store)购买了电子书。
存在一个名为DeDRM的(DeDRM)Calibre 插件(Calibre plugin)，用于从您自己的电子书中删除DRM 。您需要下载并安装此插件才能执行此操作。这适用于大多数DRM方法，除了从 Apple 购买的电子书——您需要使用 TunesKit(use TunesKit)从 Apple 电子书中删除 DRM。
- 要从非 Apple 电子书中删除DRM ，请下载最新的 DeDRM 插件(download the latest DeDRM plugin) ZIP 文件(ZIP file)，然后将其解压缩。下载后，打开 Calibre 的Preferences菜单，然后按Plug-ins按钮。
- 按插件(Plug-ins )窗口中的从文件加载插件(Load plug-in from file)选项。您需要从此时下载的解压缩ZIP内容中选择DeDRM_Plugin.zip文件。
- 作为第三方插件，Calibre 电子书(Calibre eBook)阅读器会警告您这可能存在安全风险(security risk)。按是(Yes)接受警告并安装插件。
- 此时，Calibre应该添加插件——它会出现在插件(Plug-ins)窗口中。选择DeDRM后(DeDRM)，按Enable/disable plugin按钮启用它，然后按应用(Apply)按钮。
- 双击DeDRM 插件(DeDRM plugin )以打开自定义 DeDRM(Customize DeDRM)菜单。单击(Click)配置(Configuration)列表中的一种电子书选项(eBook option)类型（例如，eInk Kindle eBooks）。
您需要将设备的序列号（例如 Kindle 的序列号）或注册密钥添加到Calibre 电子书(Calibre eBook)阅读器，以便解密任何电子书。这将允许您从中删除DRM。
当您首次将Kindle或其他DRM电子书导入Calibre时，DeDRM 插件(DeDRM plugin)将使用您提供的序列号或安全密钥(number or security keys)自动转换它们。
转换电子书文件格式(Converting eBook File Formats)
没有单一的电子书文件(eBook file)格式标准，因此很难在多个设备上使用相同类型的电子书。
开放标准是EPUB，它没有附加DRM，并且Calibre完全支持。然而，电子书出版商倾向于采用自己的格式。例如，亚马逊(Amazon)为其自己的电子书 使用AZW 或 KFX 文件格式。(AZW or KFX file formats)
- 如果您想将电子书格式(eBook format)转换为适用于 Calibre 的EPUB（或将 EPUB 转换为适用于亚马逊(Amazon)的AZW ），(EPUBs)请(AZW)在您的图书馆中选择一本书，然后按Convert Books。在下拉菜单中，单击单独转换(Convert Individually)。
- 在“转换(Convert )”窗口右上角的“输出格式(Output format)”下拉菜单中选择要使用的格式。选择AZW3或MOBI以转换为适合 Kindle 的格式。
当您准备好转换文件时，按OK。您选择的格式的电子书副本将在您的Calibre 电子书(Calibre eBook) 阅读器库(reader library)中创建，供您导出到其他地方。
使用 Calibre 访问新闻和杂志(Accessing News and Magazines using Calibre)
Calibre在(Calibre)电子书阅读(eBook reading)方面享有盛誉，但您也可以使用它来阅读您喜爱的杂志或访问最新的新闻头条。
- 为此，请按Calibre 窗口中的(Calibre window)Fetch News按钮。预定新闻下载(Schedule news download)窗口中将提供可用杂志和新闻网站的列表。
- 选择您要查看的内容，通过点击下载计划(Schedule for download)复选框并选择时间段来选择您希望(time period)Calibre下载它的频率，然后选择下载(Download)以下载内容。您可能需要首先在“帐户（必填）(Account (required)) ”部分下为内容提供用户名和密码。(username and password)
这将下载您选择的新闻或杂志内容(news or magazine content)，供您在Calibre 电子书(Calibre eBook) 阅读器库(reader library)中查看。只要Calibre 处于(Calibre)打开状态，它就会继续检查更新并自动下载以供您查看。
使用 Calibre 更好地管理电子书(Better eBook Management with Calibre)
Calibre 电子书(Calibre eBook)阅读器是电子书爱好者的必备品，尤其是当您试图摆脱对DRM 重的亚马逊(DRM-heavy Amazon)电子书的依赖时。即使这样，如果您需要， Calibre也可以愉快地转换您的电子书并将它们上传到您的Kindle 。
Calibre 也可以是存储您自己的电子书的好地方，特别是如果您决定自己编写和发布电子书。如果您正在努力寻找新书来阅读，可以使用一些很棒的免费图书网站来阅读，而无需急于从Kindle 商店(Kindle store)购买。
6 Tips & Tricks To Get More Out Of The Calibre eBook Reader
Іf you’re a fan of eBooks, yoυ’ve probably already hеard of Calibre, the open-source, cross-platform eBook management tool that turns your PC into a virtual library. You can use to read eBooks on your PC, manage other devices like Kindles, or make modifications to your eBooks.
There are few eBook management tools that can rival the Calibre eBook reader on features—it does more than Amazon’s own Kindle app for desktop PCs, for instance. Calibre is a great tool to help you manage your eBooks, so here are some tips and tricks to get the most out of it.
Exporting Your Calibre eBook Library
If you’re worried about your eBook collection, or you just want to share it with other users, you can export your Calibre eBook library using Calibre’s own export tool. You can use the same tool to import an existing library, too.
- To do this, open Calibre and press Calibre library > Export/Import all calibre data.
- In the Export/Import all calibre data window, press the Export all your calibre data option.
- Select your eBook library—most users will only have one Calibre library, so this should already be selected. Press OK to continue. You’ll need to choose a location to save your library, and you’ll need to select an empty directory to do this.
With your eBook library exported, you can follow the same steps to import it into another Calibre installation—just press Import previously exported data at the Export/Import all calibre data window and select your data instead.
Creating a Cloud Storage Calibre Library
If you want to store your Ebooks using a cloud storage service like Google Drive, you could export your collection there. This is a good way to back up your eBook collection, as well as share it with other Calibre users—perfect for family eBook collections.
To do this, simply press Calibre Library > Switch/create library. In the Choose your calibre library window, select a location that syncs with your cloud storage service (for instance, in a Dropbox sync folder).
This will sync the folder to Dropbox, allowing you to use the same library across multiple Calibre installations.
Creating a Network Shared Calibre eBook Library
Calibre includes a feature that allows it to be turned into what Calibre calls a content server. This activates Calibre’s built-in web server, allowing you to view your library on any other devices on your network (or the web, if you set up your device to allow remote connections), as well as download eBooks from your library directly to read in the Calibre eBook reader.
Setting up a shared library is simple—just press Connect/share > Start content server to enable this. This will turn the content server on immediately for you to access.
Pressing the Connect/share button again will give you a quick view of the IP address and port you’ll need to view the library on another device. Typically, this is http://ip.address:8080, replacing ip.address with your PC’s IP address, with port 8080 as the standard web port that Calibre uses.
Removing eBook DRM using Calibre
DRM (or Digital Rights Management) is an anti-piracy measure used to lock down content to a purchaser. Games, movies, and eBooks are all common places to find DRM in action, especially if you’ve bought eBooks from the Amazon Kindle store.
A Calibre plugin called DeDRM exists to remove DRM from your own eBooks. You’ll need to download and install this plugin to do this. This will work for most DRM methods, aside from eBooks purchased from Apple—you’ll need to use TunesKit to remove DRM from Apple eBooks.
- To remove DRM from non-Apple eBooks, download the latest DeDRM plugin ZIP file, then extract it. Once downloaded, open the Preferences menu for Calibre, then press the Plug-ins button.
- Press the Load plug-in from file option in the Plug-ins window. You’ll need to select the DeDRM_Plugin.zip file from the extracted ZIP contents you downloaded at this point.
- As a third-party plugin, Calibre eBook reader will warn you that this could be a security risk. Press Yes to accept the warning and install the plugin.
- At this point, Calibre should add the plugin—it’ll appear in the Plug-ins window. With DeDRM selected, press the Enable/disable plugin button to enable it, then press the Apply button.
- Double-click on the DeDRM plugin to open the Customize DeDRM menu. Click on one of the eBook option types from the Configuration list (for instance, eInk Kindle eBooks).
You’ll need to add your device’s serial number (for instance, your Kindle’s serial number) or registration keys to Calibre eBook reader to allow you to decrypt any eBooks. This will allow you to remove the DRM from them.
When you first import your Kindle or other DRM eBooks into Calibre, the DeDRM plugin will automatically convert them using the serial number or security keys you’ve provided.
Converting eBook File Formats
There isn’t a single standard of eBook file formats, making it difficult to use the same type of eBooks across multiple devices.
The open standard is EPUB, which has no DRM attached, and which Calibre fully supports. eBook publishers tend to go with their own formats, however. Amazon, for instance, uses the AZW or KFX file formats for its own eBooks.
- If you want to convert an eBook format to the Calibre-friendly EPUB (or convert EPUBs to Amazon friendly AZW), select a book in your library, then press Convert Books. In the drop-down menu, click Convert Individually.
- Select the format you want to use in the Output format drop-down menu, found in the top-right corner of the Convert window. Select AZW3 or MOBI to convert to a Kindle-friendly format.
When you’re ready to convert the file, press OK. A duplicate of your eBook, in the format you selected, will be created in your Calibre eBook reader library for you to export elsewhere.
Accessing News and Magazines using Calibre
Calibre has a good reputation for eBook reading, but you can also use it to read your favorite magazines or access the latest news headlines.
- To do this, press the Fetch News button in the Calibre window. A list of available magazines and news sites will be available in the Schedule news download window.
- Select the content you want to see, select how often you wish Calibre to download it by pressing the Schedule for download checkbox and selecting the time period, then Download to download the content. You may need to provide a username and password for the content under the Account (required) section first.
This will download the news or magazine content you selected for you to view in your Calibre eBook reader library. As long as Calibre is open, it will continue to check for updates and download them automatically for you to view.
Better eBook Management with Calibre
The Calibre eBook reader is a must-have for eBook lovers, especially if you’re trying to break away from a reliance on DRM-heavy Amazon eBooks. Even then, Calibre can happily convert your eBooks and upload them to your Kindle, should you need to.
Calibre can also be a good place to store your own eBooks, especially if you decide to write and publish an eBook yourself. If you’re struggling to find new books to read, there are some great free book sites that you can use to get reading without rushing to buy from the Kindle store.
