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AZW3 file format

Extension.azw3
Categorybooks
Programs
Calibre
Main programAmazon Kindle
Description.azw (Amazon KF8 eBook File)
The .azw format is an eBook file format developed by Amazon for use with their Kindle e-readers. It's also known as Kindle Format 8 (KF8), and it supersedes the older AZW format.
AZW supports a variety of features including text reflow, images, tables, and interactive elements. It is designed for a more enriched reading experience with support for HTML and CSS content.
AZW files are typically used for eBooks with complex layouts, such as textbooks, comics, and children's books.
Technical detailsThe `.azw3` file format, also known as Kindle Format 8 (KF8), is an advanced Amazon eBook format with the following features:
- Rich Formatting: Supports HTML5 and CSS3 for complex layouts.
- Multimedia: Includes text, images, audio, video, and interactive elements.
- DRM Protection: Often uses Amazon's DRM, but DRM-free versions exist.
- Compatibility: Primarily designed for Amazon's Kindle e-readers and app, with limited support for other devices.
- Backward Compatibility: Works with older .azw format devices and apps.
- File Size: Efficient, ideal for devices with limited storage capacity.
- Text-to-Speech: Supports TTS on Kindle devices.
- Metadata: Contains bibliographic information.
- High-Resolution Images: Supports improved visuals for illustrated books.
- Advanced Typography: Allows for complex formatting using HTML5 and CSS3.
- Interactive Content: Includes features such as hyperlinks.
- Font Embedding: Allows for custom fonts to enhance the reading experience.
- Region Magnification: Enhances readability of graphic-heavy books.
- Compression: Reduces file size for efficient storage and downloading.
The `.azw3` format is a significant upgrade, catering to the creation of complex and richly formatted eBooks within the Kindle ecosystem.
MIME type
application/octet-stream