Convert DJVU to TEXTILE

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DJVU vs TEXTILE Format Comparison

Aspect DJVU (Source Format) TEXTILE (Target Format)
Format Overview
DJVU
DjVu Document Format

Compressed document format from AT&T Labs (1996) for scanned documents. Multi-layer wavelet compression achieves exceptional file size reduction while maintaining visual quality of digitized pages.

Standard Format Lossy Compression
TEXTILE
Textile Markup Language

Lightweight markup language created by Dean Allen in 2002 for web content authoring. Provides a concise syntax for generating HTML with support for formatting, links, images, tables, and footnotes. Used by Redmine, Textpattern CMS, and other platforms.

Standard Format Lossless
Technical Specifications
Structure: Multi-layer compressed format
Encoding: Binary with embedded text
Format: IFF85-based container
Compression: Wavelet (IW44) + JB2
Extensions: .djvu, .djv
Structure: Plain text with inline markup
Encoding: UTF-8
Format: Textile specification (Dean Allen)
Compression: None (plain text)
Extensions: .textile, .txt
Syntax Examples

DJVU stores compressed page layers:

AT&TFORM  (IFF85 container)
├── DJVU  (single page)
│   ├── BG44  (background)
│   ├── Sjbz  (text mask)
│   └── TXTz  (hidden text)
└── DIRM  (directory)

Textile uses concise inline markup:

h1. Chapter One: Introduction

This chapter covers the *fundamental*
concepts used throughout this document.

h2. Section 1.1: Background

* First key point
* Second key point
* Third key point

bq. An important quote from the text.
Content Support
  • Scanned document pages
  • Mixed text and image content
  • Hidden OCR text layer
  • Multi-page documents
  • Headings (h1. through h6.)
  • Bold, italic, underline, strikethrough
  • Ordered and unordered lists
  • Tables with alignment
  • Block quotes and footnotes
  • Links and images
  • CSS class and ID attributes
Advantages
  • Excellent compression for scans
  • Much smaller than PDF
  • Fast page rendering
  • Searchable with OCR
  • More expressive than Markdown
  • Native table support
  • Footnote support
  • CSS class/ID integration
  • Clean HTML output
  • Redmine project management support
Disadvantages
  • Limited software support
  • Not editable as a document
  • Lossy compression
  • Less popular than PDF
  • Less popular than Markdown
  • Fewer tools and editors
  • Steeper learning curve than MD
  • Limited adoption outside CMS
Common Uses
  • Scanned book archives
  • Digital library collections
  • Academic paper distribution
  • Document preservation
  • Redmine wiki and issue tracking
  • Textpattern CMS content
  • Web content authoring
  • Documentation with rich formatting
  • Blog post writing
Best For
  • Compact scanned page storage
  • Digitized book distribution
  • Archiving paper documents
  • Low-bandwidth sharing
  • Redmine wiki pages
  • Rich web content authoring
  • Documents needing footnotes
  • Content with CSS styling needs
Version History
Introduced: 1996 (AT&T Labs)
Developers: Yann LeCun, Leon Bottou
Status: Stable, open specification
Evolution: DjVuLibre open-source tools
Introduced: 2002 (Dean Allen)
Implementation: RedCloth (Ruby), textile-js
Status: Stable, maintained
Evolution: Textile 2 with extended features
Software Support
DjView: Native cross-platform viewer
Okular: KDE document viewer
Evince: GNOME document viewer
Other: SumatraPDF, browser plugins
Redmine: Native Textile wiki support
Ruby: RedCloth gem
JavaScript: textile-js package
Other: Textpattern, Pandoc, PHP-Textile

Why Convert DJVU to TEXTILE?

Converting DJVU to Textile format produces markup that is specifically designed for web content authoring and publishing. Textile offers more expressive formatting than Markdown, including native table support, footnotes, CSS class attributes, and block quotes, making it ideal for publishing extracted document content on the web with rich formatting.

Textile is the native markup language of Redmine, the popular open-source project management and issue tracking system. Converting scanned documents to Textile enables direct posting of extracted content to Redmine wiki pages, issue descriptions, and project documentation without additional formatting work.

For content management systems like Textpattern CMS, Textile provides the standard authoring format. Document content extracted from DJVU and formatted with Textile markup can be directly published as web pages, blog posts, or knowledge base articles with proper headings, lists, and emphasis.

Textile's concise syntax (h1. for headings, * for bold, _ for italic, # for ordered lists) is easy to learn and produces clean HTML output. The extracted document content gains structural markup that makes it suitable for web publication while remaining readable in its plain text form.

Key Benefits of Converting DJVU to TEXTILE:

  • Redmine Ready: Post directly to Redmine wiki and issues
  • Rich Formatting: Headings, lists, tables, footnotes, block quotes
  • CSS Integration: Apply classes and IDs for styled web output
  • Clean HTML: Converts to well-structured HTML for web publishing
  • Footnote Support: Reference notes common in academic documents
  • Table Markup: Native table syntax for tabular content
  • CMS Publishing: Direct use in Textpattern and compatible systems

Practical Examples

Example 1: Redmine Wiki Documentation

Input DJVU file (procedures.djvu):

Scanned standard operating procedures:
- Section titles and numbering
- Step-by-step instructions
- Warning notices and notes

Output Textile file (procedures.textile):

h1. Standard Operating Procedures

h2. 1. Safety Precautions

*Always* wear protective equipment
before beginning any procedure.

h2. 2. Setup Instructions

# Power on the main unit
# Wait for initialization (30 seconds)
# Verify green status indicator

bq. Note: Contact supervisor if the
status indicator shows red.

Example 2: Web Article Publishing

Input DJVU file (article.djvu):

Scanned magazine article:
- Title and author byline
- Body text with sections
- Sidebar quotes and references

Output Textile file (article.textile):

h1. The Future of Renewable Energy

p(author). _By Dr. Sarah Chen_

The global transition to renewable energy
sources has accelerated dramatically in
the past decade.

h2. Solar Power Advances

Solar panel efficiency has improved from
15% to over 25% in commercial modules.

bq. "We are witnessing an unprecedented
shift in energy production." - IEA Report

Example 3: Technical Report with Tables

Input DJVU file (report.djvu):

Scanned technical report:
- Performance metrics table
- Analysis sections
- Recommendations list

Output Textile file (report.textile):

h1. Performance Analysis Report

h2. Q4 2023 Metrics

|_. Metric |_. Target |_. Actual |
| Uptime | 99.9% | 99.95% |
| Response Time | 200ms | 185ms |
| Error Rate | 0.1% | 0.08% |

h2. Recommendations

* Increase server capacity by 20%
* Implement caching layer
* Upgrade monitoring system

Frequently Asked Questions (FAQ)

Q: What is Textile markup?

A: Textile is a lightweight markup language created by Dean Allen in 2002. It uses concise syntax like h1. for headings, *bold*, _italic_, and # for lists. It converts to clean HTML and is used by Redmine, Textpattern CMS, and other web platforms.

Q: How does Textile differ from Markdown?

A: Textile offers native table support, footnotes, CSS class/ID attributes, and block quotes with a dedicated syntax. Markdown is simpler and more widely adopted, but Textile provides richer formatting options out of the box without extensions.

Q: Can I use the output in Redmine?

A: Yes, Redmine natively supports Textile markup. Copy the output directly into Redmine wiki pages, issue descriptions, or project documentation. The formatting will render correctly in Redmine's display.

Q: How do I convert Textile to HTML?

A: Use RedCloth in Ruby, textile-js in JavaScript, PHP-Textile in PHP, or Pandoc (universal converter). Most CMS platforms that accept Textile convert it to HTML automatically when displaying content.

Q: Does Textile support tables?

A: Yes, Textile has native table syntax using pipe characters. Header cells use |_. prefix, and regular cells use | separators. Column alignment and spanning are also supported, unlike basic Markdown.

Q: Can I convert Textile to Markdown?

A: Yes, Pandoc can convert between Textile and Markdown: pandoc -f textile -t markdown input.textile -o output.md. Online converters are also available for quick one-off conversions.

Q: Is Textile still actively used?

A: While Markdown has become more popular for general use, Textile remains actively used in Redmine (default wiki format), Textpattern CMS, and various Ruby on Rails applications. It is maintained and fully functional.

Q: Is the conversion free?

A: Yes, completely free with secure processing and automatic file deletion after conversion.