Would you like to read a PDF eBook on an eReader or mobile device, but aren’t happy with the performance? Here’s how you can convert your PDFs to the popular ePub format so you can easily read them on any device.
您想在电子阅读器或移动设备上阅读PDF电子书,但对性能不满意吗? 您可以通过以下方式将PDF转换为流行的ePub格式,以便可以在任何设备上轻松阅读它们。
PDFs are a popular format for eBooks since they render the same on any device and can preserve the exact layout of the print book. However, this benefit is their major disadvantage on mobile devices, as you often have to zoom and pan back and forth to see everything on the page. ePub files, on the other hand, are an increasingly popular option. They can reflow to fill your screen instead of sticking to a strict layout style. With the free Calibre program, you can quickly convert your PDF eBooks to ePub format.
PDF是电子书的一种流行格式,因为它们可以在任何设备上呈现,并且可以保留印刷书的确切布局。 但是,此优点是它们在移动设备上的主要缺点,因为您通常必须前后缩放以查看页面上的所有内容。 另一方面,ePub文件是一种越来越受欢迎的选择。 他们可以重排以填满您的屏幕,而不必遵循严格的布局样式。 使用免费的Calibre程序,您可以快速将PDF电子书转换为ePub格式。
Getting Started
入门
Download the Calibre installer(link below)for your operating system, and install as normal. Calibre works on recent versions of Windows, OS X, and Linux. The Calibre installer is very streamlined, so the install process was quite quick.
下载适用于您的操作系统的Calibre安装程序(下面的链接),然后按常规进行安装。 Calibre可在Windows,OS X和Linux的最新版本上使用。 Calibre安装程序非常简化,因此安装过程非常快。
Calibre is a great application for organizing your eBooks. It can automatically sort your books by their metadata, and even display their covers in a Coverflow-style viewer.
口径是组织电子书的绝佳应用程序。 它可以自动按照书籍的元数据对书籍进行排序,甚至可以在Coverflow样式的查看器中显示书籍的封面。
To add an eBook to your library, simply drag-and-drop the file into the Calibre window, or clickAdd booksat the top. Here you can choose to add all the books from a folder and more.
要将电子书添加到您的书架中,只需将文件拖放到口径窗口中,或单击顶部的添加书本。 在这里,您可以选择添加文件夹中的所有书籍以及更多书籍。
Calibre will then add the book(s) to your library, import the associated metadata, and organize them in the catalog.
口径然后将书籍添加到您的图书馆,导入相关的元数据,并在目录中进行整理。
Convert your Books
转换您的书
Once you’ve imported your books into Calibre, it’s time to convert them to the format you want. Select the book or books you want to convert, and clickConvert E-books. Select whether you want to convert them individually or bulk convert them.
将图书导入Calibre后,就可以将其转换为所需的格式了。 选择您要转换的一本书或几本书,然后点击转换电子书。 选择是要单独转换还是批量转换。
The convertor window has lots of options, so you can get your ePub book exactly like you want. You can simply clickOkand go with the defaults, or you can tweak the settings.
转换器窗口有很多选项,因此您可以完全根据需要获取ePub书。 您可以简单地单击“确定”并使用默认设置,也可以调整设置。
Do note that the conversion will only work successfully with PDFs that contain actual text. Some PDFs are actually images scanned in from the original books; these will appear just like the PDF after the conversion, and won’t be any easier to read.
请注意,该转换将仅适用于包含实际文本的PDF。 有些PDF实际上是从原始书籍中扫描而来的图像。 这些将在转换后像PDF一样出现,并且不会更容易阅读。
On the first tab, you’ll notice that Calibre will repopulate most of the metadata fields with info from your PDF. It will also use the first page of the PDF as the cover. Edit any of the information that may be incorrect, and add any additional information you want associated with the book.
在第一个标签上,您会注意到Caliber将用来自PDF的信息重新填充大多数元数据字段。 它还将使用PDF的首页作为封面。 编辑可能不正确的任何信息,然后添加要与该书关联的任何其他信息。
If you want to convert your eBook to a different format other than ePub, Calibre’s got you covered, too. On the top right, you can choose to output the converted eBook into a many different file formats, including the Kindle-friendly MOBI format.
如果您想将电子书转换为ePub以外的其他格式,那么Calibre也可以满足您的要求。 在右上角,您可以选择将转换后的电子书输出为许多不同的文件格式,包括Kindle友好的MOBI格式。
One other important settings page is theStructure Detectiontab. Here you can choose to have it remove headers and footers in the converted book, as well as automatically detect chapter breaks.
另一个重要的设置页面是“结构检测”选项卡。 在这里,您可以选择使其删除转换后的书中的页眉和页脚,以及自动检测分节符。
ClickOkwhen you’ve finished choosing your settings and Calibre will convert the book. This may take a few minutes, depending on the size of the PDF. If the conversion seems to be taking too long, you can clickShow job detailsfor more information on the progress.
完成选择设置后,单击“确定”,Calibre将转换书籍。 这可能需要几分钟,具体取决于PDF的大小。 如果转换似乎花费了太长时间,则可以单击显示作业详细信息以获取有关进度的更多信息。
The conversion usually works good, but we did have one job freeze on us. When we checked the job details, it indicated that the PDF was copy-protected. Most PDF eBooks, however, worked fine.
转换通常效果很好,但是我们确实冻结了一项工作。 当我们检查作业详细信息时,它表明PDF已受复制保护。 但是,大多数PDF电子书都能正常工作。
Now, back in the main Calibre window, select your book and save it to disk. You can choose to save only the EPUB format, or you can selectSave to diskto save all formats of the book to your computer.
现在,回到Calibre主窗口中,选择您的书籍并将其保存到磁盘。 您可以选择仅保存EPUB格式,也可以选择“保存到磁盘”以将书籍的所有格式保存到计算机。
You can also view the ePub file directly in Calibre’s built-in eBook viewer. This is the PDF book we converted, and it looks fairly good in the converted format. It does have some odd line breaks and some misplaced numbers, but on the whole, the converted book is much easier to read, especially on small mobile devices.
您也可以直接在Calibre内置的eBook阅读器中查看ePub文件。 这是我们转换的PDF书籍,转换后的格式看起来还不错。 它确实有一些奇怪的换行符和一些错位的数字,但是总的来说,转换后的书更容易阅读,尤其是在小型移动设备上。
Even images get included inline, so you shouldn’t be missing anything from the original eBook.
甚至图像也被内联,所以您不应该错过原始电子书中的任何内容。
Conclusion
结论
Calibre makes it simple to read your eBooks in any format you need. It is a project that is in constant development, and updates regularly adding better stability and features. Whether you want to ready your PDF eBooks on a Sony Reader, Kindle, netbook or Smartphone, your books will now be more accessible than ever. And with thousands of free PDF eBooks out there, you’ll be sure to always have something to read.
口径使您可以轻松阅读所需格式的电子书。 这是一个不断发展的项目,并且会定期更新以增加更好的稳定性和功能。 无论您想在Sony Reader,Kindle,上网本还是Smartphone上准备PDF电子书,现在都比以往任何时候都可以更轻松地访问书籍。 有了成千上万的免费PDF电子书,您将确保总能阅读一些东西。
If you’d like some Geeky PDF eBooks, Microsoft Press is offering a number of free PDF eBooks right now. Check them out at this link(Account Required).
如果您需要一些Geeky PDF电子书,Microsoft Press现在提供大量免费的PDF电子书。 在此链接中检出它们(需要帐户)。
Download the Calibre eBook program
下载Calibre eBook程序
翻译自: /howto/19217/convert-a-pdf-ebook-to-epub-format/