欢迎使用智能文件转换平台

上传文件开始转换，支持本地文件上传或远程链接导入

${shortenFileName(item.file_name)} ${formatBytes(item.file_size)}

输出格式：

已上传 ${items.length} 个文件

Convert

如何将Epub文件转换为AZW4？

点击「选择EPUB文件」按钮上传您的源文件
点击「立即转换」启动智能转码流程
状态显示「转换完成」后，点击「下载AZW4」获取文件

全场景EPUB to AZW4格式兼容转换

本工具支持将多种类型的 Epub 转换为 AZW4。可将 PDF, MOBI, LIT, AZW3, FB2, HTMLZ, LRF, OEB, TXT AND RTF 转换为 AZW4。

行业领先的Epub格式转换专家

智能优化算法保障Epub转换质量，支持批量处理与自定义分辨率/码率/帧率设置

零成本·军工级安全

基于浏览器即点即用，采用金融级256位SSL加密传输，所有文件72分钟后自动焚毁

What is an EPUB file?

EPUB is an open eBook format developed by the International Digital Publishing Forum (IDPF), widely supported by many eBook readers and software. It is based on XML and ZIP technologies, offering dynamic formatting, cross-platform compatibility, and rich multimedia support, making it suitable for creating high-quality eBook content. Compared to traditional formats like PDF, EPUB provides better readability, especially on devices with different screen sizes, as it can automatically adjust text layout to fit the screen size. Additionally, EPUB files often include metadata (such as author, title, chapter information, etc.), facilitating management and search. It is widely used in the publishing industry and personal creation, suitable for novels, textbooks, magazines, and various types of eBooks.

How to open and edit an EPUB file?

Recommended tools to open EPUB files: - Readers: [Adobe Digital Editions](https://www.adobe.com/solutions/ebook/digital-editions.html), available on multiple platforms, providing a good reading experience. - Management and Conversion Tools: [Calibre](https://calibre-ebook.com/) (cross-platform), which can convert EPUB files to other formats such as PDF or MOBI for reading on other devices or platforms. Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert an EPUB file to another format, many tools provide powerful conversion features, such as using Calibre for format conversion. Note that some DRM-protected EPUB files may not be directly opened on non-official channels. For EPUB files containing sensitive information, ensure you use encryption features to protect the file. Steps are as follows: 1. Use a tool that supports encryption (such as Calibre or Adobe Digital Editions). 2. Open the file and select 'File' > 'Save As' > 'Save as PDF'. 3. In the export settings, choose 'Security', set a password, and select encryption options.

开发团队： International Digital Publishing Forum (IDPF)
首发时间： 2007
相关链接：

https://en.wikipedia.org/wiki/EPUB

https://www.adobe.com/solutions/ebook/digital-editions.html

https://calibre-ebook.com/

What is an AZW4 file?

AZW4 is an advanced eBook format developed by Amazon, specifically designed for Kindle devices and apps, widely used in Kindle 4 and later models. It typically includes higher levels of digital rights management (DRM) protection to ensure content security and copyright protection. Compared to traditional formats like AZW or MOBI, AZW4 offers more advanced features and a better reading experience, supporting complex layouts, multimedia elements, and interactive features. It is suitable for creating high-quality eBook content, especially for publications requiring strict copyright protection. It is widely used in the publishing industry and personal creation, suitable for novels, textbooks, magazines, and various types of eBooks.

How to open and edit an AZW4 file?

Recommended tools to open AZW4 files: - Readers: [Amazon Kindle](https://www.amazon.com/kindle-dbs/fd/kcp), available for Kindle devices and apps supporting the AZW4 format. Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert an AZW4 file to another format, many tools provide powerful conversion features, such as using [Calibre](https://calibre-ebook.com/) for format conversion. Note that some DRM-protected AZW4 files may not be directly opened on non-official channels. For AZW4 files containing sensitive information or protected by DRM, ensure you comply with copyright regulations and purchase and read eBooks through official channels. Steps are as follows: 1. Use a tool that supports encryption (such as Amazon Kindle or dedicated DRM unlocking tools). 2. Open the file and select 'File' > 'Save As' > 'Save as PDF'. 3. In the export settings, choose 'Security', set a password, and select encryption options.