.DJVU File Extension Reference
The .DJVU file format is a structured digital document and data container standardized for cross-platform exchange and application interoperability. Files with the .DJVU extension are categorized under Documents and are widely utilized in modern computing environments for storing, rendering, and exchanging structured data. By verifying the header signature (50 4B 03 04) using forensic byte inspection tools, users can authenticate file integrity and rule out disguised executable payloads.
Quick Specification & Metadata
.DJVU
Documents
image/vnd.djvu
AT&T Labs / LizardTech
N/A
Proprietary / Patent Licensed
Binary Header Data
100 KB - 20 MB
Online .DJVU Viewer & Live Inspector
Open, inspect, zoom, and export .DJVU files directly in your web browser. 100% private in-memory processing.
Drop your .DJVU file here or browse
Inspect and preview any .DJVU file securely with zero server uploads.
What is a .DJVU File? (Technical Definition & Architecture)
The .DJVU file format is a structured digital document and data container standardized for cross-platform exchange and application interoperability. Files with the .DJVU extension are categorized under Documents and are widely utilized in modern computing environments for storing, rendering, and exchanging structured data. By verifying the header signature (50 4B 03 04) using forensic byte inspection tools, users can authenticate file integrity and rule out disguised executable payloads.
Organizes body paragraphs, styles, table schemas, and embedded media assets.
Preserves font embedding, line spacing, margins, and print pagination.
Encapsulates document modification metadata, comments, and change tracking.
DJVU Binary Structure & Header Specifications
The .DJVU format organizes data into validated sequential or hierarchical byte structures. Inspecting the header offset reveals the magic byte sequence 50 4B 03 04.
- File Signature (Magic Bytes): 50 4B 03 04
- MIME Content-Type: image/vnd.djvu
- Payload Structure: Optimized data stream with metadata headers and checksum records.
- Safety Classification: Low Risk – Provides superior text compression ratio compared to scanned PDF Files ending in .DJVU should always be inspected for valid magic bytes to verify they match legitimate Documents specifications.
How to Open .DJVU Files on Windows, Mac & Android
- 1Primary Application: Double-click or open directly with WinDjView.
- 2Alternative Software: Open using DjView.
- 3File Association: Right-click the file, select Open with > Choose another app, and check Always use this app.
- 1Native macOS Application: Open with WinDjView.
- 2Quick Look Preview: Highlight the file in Finder and tap the Spacebar.
- 3Set Default App: Press Cmd + I, expand Open with, select your application, and click Change All.
- 1Compatible Mobile Apps: Download a dedicated viewer for .djvu from the Google Play Store.
- 2Cloud Storage: Open through Google Drive, Dropbox, or OneDrive mobile apps.
- 3Online Browser Conversion: Use AnyFileX mobile browser tools to convert the file into universal PDF or image formats.
Convert .DJVU Files Online & Free
Convert your .DJVU files directly into standardized .PDF format with high precision and zero privacy compromises.
Export .DJVU files to .JPG for universal cross-platform viewing, printing, and sharing.
.DJVU MIME Types & HTTP Server Headers
When serving .djvu files over HTTP or configuring REST APIs, web servers must send the official IANA registered Content-Type headers:
| MIME Type Identifier | Standard Usage | File Extensions | Copy |
|---|---|---|---|
| image/vnd.djvu | Standard official MIME type for .djvu files | .djvu |
# Nginx mime.types
types {
image/vnd.djvu djvu;
}
# Apache .htaccess
AddType image/vnd.djvu .djvu.DJVU Magic Bytes & Hex File Signatures
In digital forensics and file signature analysis, authentic .djvu files begin with a standardized magic byte sequence at byte offset 0x00 to verify file integrity and prevent extension spoofing:
Offset 0x0050 4B 03 04DJVUDocuments File Format.DJVU vs .PDF (Detailed Format Comparison)
| Feature Metric | .DJVU | Advantage | |
|---|---|---|---|
| Format Full Name | DJVU File Format | Portable Document Format | Tie / Equal |
| Category | Documents | Documents | Tie / Equal |
| MIME Content-Type | image/vnd.djvu | application/pdf | Tie / Equal |
| Binary Header (Magic Bytes) | 50 4B 03 04 | 25 50 44 46 2D (%PDF-) | Tie / Equal |
| Typical Storage Footprint | 100 KB - 20 MB | 200 KB – 25 MB | Tie / Equal |
| Universal Native Support | High / OS Standard | High / OS Standard | Tie / Equal |
.DJVU Compatibility Matrix
Supported natively or through WinDjView
Supported natively or via DjView
Supported via open-source tools and command line utilities
Accessible through compatible mobile viewers or cloud previewers
Supported through dedicated mobile apps or cloud viewers
Accessible via web browser applications and Chrome extensions
Recommended Software for .DJVU
WinDjView
AT&T Labs / LizardTech
DjView
AT&T Labs / LizardTech
STDU Viewer
AT&T Labs / LizardTech
Sumatra PDF
Krzysztof Kowalczyk
Common Errors & Troubleshooting .DJVU Files
Security & Malware Risk Assessment
Can a .DJVU file carry viruses or malware?
Provides superior text compression ratio compared to scanned PDF Files ending in .DJVU should always be inspected for valid magic bytes to verify they match legitimate Documents specifications.
No active macro execution support
Safe to inspect with AnyFileX's browser sandbox
- •Verify file extension in OS File Explorer options ('Show known file extensions').
- •Verify magic bytes (50 4B 03 04) to ensure the file isn't a renamed executable.
- •Do not open .DJVU attachments received unexpectedly via email or instant messenger.
Preguntas frecuentes
Respuestas claras a las preguntas más habituales.
Explore related information about .DJVU files
Related Extensions
Related Converters
Related Software
Repair & Comparisons
Popular Knowledge Base Guides
Browse Category Pages
Related Questions
Recently Viewed Extensions
Your recently inspected file extensions will appear here for rapid re-visitation.