Convert ADOC to AZW3

Drag and drop files here or click to select.
Max file size 100mb.
Uploading progress:

ADOC vs AZW3 Format Comparison

Aspect ADOC (Source Format) AZW3 (Target Format)
Format Overview
ADOC
AsciiDoc Markup Language

Lightweight markup language designed for writing technical documentation, articles, books, and more. Created as a more powerful alternative to Markdown with support for complex document structures, cross-references, and publishing workflows.

Documentation Technical Writing
AZW3
Amazon Kindle Format 8 (KF8)

Amazon's modern e-book format introduced with Kindle Fire. Based on EPUB with proprietary extensions, supporting HTML5, CSS3, and enhanced typography. The standard format for Kindle devices and apps, offering better formatting than older MOBI format.

Kindle E-Book
Technical Specifications
Structure: Plain text with semantic markup
Encoding: UTF-8
Format: Human-readable text
Compression: None
Extensions: .adoc, .asciidoc, .asc
Structure: Binary container (MOBI-based)
Encoding: HTML5/CSS3 content
Format: Proprietary Amazon format
Compression: Internal compression
Extensions: .azw3, .kf8
Syntax Examples

AsciiDoc uses intuitive markup:

= Document Title
Author Name
:toc:

== Chapter One

This is a paragraph with *bold*
and _italic_ text.

[source,python]
----
def hello():
    print("Hello!")
----

NOTE: This is a note.

AZW3 uses binary format (not human-readable):

[Binary Data]
Contains:
- HTML5 content
- CSS3 stylesheets
- Images and resources
- Metadata (title, author)
- Table of contents
- Kindle-specific features
Optimized for Kindle rendering
Content Support
  • Document structure (titles, sections)
  • Text formatting (bold, italic, monospace)
  • Lists (ordered, unordered, definition)
  • Tables with advanced formatting
  • Source code blocks with syntax highlighting
  • Admonitions (NOTE, TIP, WARNING, etc.)
  • Cross-references and links
  • Images and diagrams
  • Includes (file inclusion)
  • Variables and attributes
  • Rich text formatting (HTML5/CSS3)
  • Enhanced typography (Kindle fonts)
  • Images (embedded, optimized)
  • Table of contents (NCX + HTML)
  • Chapter navigation
  • Bookmarks and highlights
  • X-Ray feature support
  • Dictionary lookup
  • Font size adjustment
  • Page Flip preview
Advantages
  • Human-readable source
  • Version control friendly (Git)
  • Powerful documentation features
  • Single source, multiple outputs
  • Built-in table of contents
  • Cross-reference support
  • Modular document structure
  • Active community and tools
  • Native Kindle support
  • Better formatting than MOBI
  • HTML5/CSS3 features
  • Enhanced typography
  • Smaller file sizes
  • Kindle features integration
  • Professional e-book quality
  • Wide Kindle ecosystem
Disadvantages
  • Learning curve for advanced features
  • Less known than Markdown
  • Requires toolchain for output
  • Not directly viewable
  • Complex syntax for some features
  • Amazon ecosystem only
  • Proprietary format
  • DRM restrictions possible
  • Not readable on other e-readers
  • Requires conversion for other platforms
Common Uses
  • Technical documentation
  • Software manuals
  • Book authoring
  • API documentation
  • Scientific papers
  • Knowledge bases
  • Online help systems
  • Kindle e-books
  • Self-publishing on Amazon
  • Technical manuals for Kindle
  • Digital textbooks
  • Professional publications
  • Corporate documentation
Best For
  • Technical writers
  • Documentation teams
  • Book authors
  • Developers writing docs
  • Kindle publishing
  • Amazon KDP authors
  • E-book distribution
  • Professional e-books
Version History
Introduced: 2002 (Stuart Rackham)
Current Version: AsciiDoc (Asciidoctor)
Status: Active development
Evolution: Asciidoctor (Ruby), AsciidoctorJ (Java)
Introduced: 2011 (Kindle Fire)
Also Known As: Kindle Format 8 (KF8)
Status: Current Kindle standard
Evolution: Replaced MOBI as primary format
Software Support
Asciidoctor: Primary processor
Pandoc: Universal converter
VS Code: AsciiDoc extension
Other: IntelliJ, Atom, Sublime Text
Kindle Devices: All models
Kindle Apps: iOS, Android, PC, Mac
Calibre: Full support (read/write)
Other: Limited third-party support

Why Convert ADOC to AZW3?

Converting AsciiDoc documents to AZW3 format enables you to publish your technical documentation, books, or articles directly to Amazon Kindle devices and apps. AsciiDoc's powerful markup capabilities combined with Kindle's widespread adoption makes this conversion ideal for authors and technical writers who want to reach the massive Kindle user base.

AsciiDoc excels at structured documentation with features like automatic table of contents, cross-references, code blocks with syntax highlighting, and admonitions (notes, warnings, tips). When converted to AZW3, these elements are transformed into Kindle-compatible HTML5/CSS3, preserving the document structure while optimizing for e-reader display.

AZW3 (Kindle Format 8) is Amazon's modern e-book format, offering significant improvements over the older MOBI format. It supports HTML5, CSS3, embedded fonts, and enhanced typography features. AZW3 files work on all Kindle devices (Paperwhite, Oasis, Fire tablets) and Kindle apps (iOS, Android, Windows, Mac).

The conversion process uses Pandoc for initial document processing and Calibre for final AZW3 generation. This ensures high-quality output with proper formatting, chapter navigation, and Kindle-specific optimizations. The resulting e-book includes a functional table of contents, proper chapter breaks, and optimized images.

Key Benefits of Converting ADOC to AZW3:

  • Kindle Publishing: Create professional e-books for Amazon Kindle
  • Wide Reach: Access millions of Kindle users worldwide
  • Modern Format: HTML5/CSS3 support for better formatting
  • Enhanced Typography: Kindle's advanced font rendering
  • Navigation: Automatic table of contents and chapter navigation
  • Portable: Read on any Kindle device or app
  • Professional Quality: Publication-ready e-books from documentation

Practical Examples

Example 1: Technical Book

Input AsciiDoc file (book.adoc):

= Python Programming Guide
John Smith
:toc: left
:icons: font

== Introduction

Welcome to this comprehensive Python guide.

== Getting Started

=== Installation

Install Python from https://python.org[python.org].

[source,python]
----
print("Hello, World!")
----

NOTE: Python 3.9+ is recommended.

Output AZW3 file (book.azw3):

Kindle-ready e-book with:
- Professional title page
- Clickable table of contents
- Chapter navigation
- Formatted code blocks
- Note callouts styled for Kindle
- Optimized for all Kindle devices
- Ready for personal use or KDP publishing

Example 2: Documentation Manual

Input AsciiDoc file (manual.adoc):

= Product User Manual
:author: Documentation Team
:version: 2.0

== Overview

This manual covers all product features.

== Features

.Feature Comparison
|===
|Feature |Basic |Pro

|Storage
|10 GB
|100 GB

|Support
|Email
|24/7 Phone
|===

WARNING: Always backup your data.

Output AZW3 file (manual.azw3):

Professional Kindle manual:
- Tables rendered correctly
- Warning blocks highlighted
- Author and version metadata
- Clean, readable formatting
- Perfect for offline reference
- Works on Kindle Paperwhite

Example 3: Article Collection

Input AsciiDoc file (articles.adoc):

= Collected Essays on Technology
Jane Doe
:doctype: book

[preface]
== Preface

These essays explore modern technology.

== Part I: Foundations

=== The Digital Revolution

The rise of computing changed everything...

[quote, Alan Kay]
The best way to predict the future
is to invent it.

Output AZW3 file (articles.azw3):

E-book ready for Kindle:
- Book structure preserved
- Preface properly formatted
- Quotes styled elegantly
- Parts and chapters organized
- Professional typography
- Ideal for Kindle reading

Frequently Asked Questions (FAQ)

Q: What is AsciiDoc format?

A: AsciiDoc is a lightweight markup language for writing documentation, articles, books, and more. It's similar to Markdown but more powerful, with features like automatic table of contents, cross-references, admonitions (notes, warnings), and support for complex document structures. It's widely used for technical documentation and book authoring.

Q: What is AZW3 format?

A: AZW3, also known as Kindle Format 8 (KF8), is Amazon's modern e-book format. It replaced the older MOBI format and supports HTML5, CSS3, embedded fonts, and enhanced typography. AZW3 files work on all Kindle devices and apps, offering better formatting and features than MOBI.

Q: Will my code blocks be preserved?

A: Yes! Code blocks from AsciiDoc are converted to properly formatted monospace text in the AZW3 output. While Kindle doesn't support syntax highlighting colors, the code structure, indentation, and formatting are preserved. Code blocks are displayed with appropriate styling for readability on e-ink and tablet displays.

Q: Can I publish the AZW3 on Amazon KDP?

A: While you can read AZW3 files on Kindle devices, Amazon KDP (Kindle Direct Publishing) typically prefers EPUB or DOCX uploads, which Amazon then converts to their formats. However, the AZW3 output from this converter is perfect for personal use, sharing with others, or sideloading to Kindle devices via USB or Send to Kindle.

Q: How do I get the AZW3 file onto my Kindle?

A: There are several ways: (1) Connect your Kindle via USB and copy the file to the "documents" folder, (2) Use Amazon's "Send to Kindle" email feature (send to [email protected]), (3) Use the Send to Kindle desktop app, or (4) Use Calibre to manage and transfer your e-book library.

Q: Are images included in the conversion?

A: Yes, images referenced in your AsciiDoc document are embedded in the AZW3 file. They're automatically optimized for Kindle display. For best results, use images that are at least 300 pixels wide. Note that image paths in your ADOC file should be accessible during conversion.

Q: What about tables in AsciiDoc?

A: AsciiDoc tables are converted to HTML tables in the AZW3 output. Basic tables render well on Kindle devices. However, very wide or complex tables may require horizontal scrolling on smaller Kindle screens. For best results, keep tables simple and test on your target device.

Q: Is there a file size limit?

A: Our converter handles AsciiDoc files of typical documentation and book sizes. Very large documents with many images may take longer to process. Kindle devices typically support e-books up to 50MB, which is sufficient for most text-based content with moderate images.