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HDR at a glance
HDR
Convert to HDR when you need scene-referred high-dynamic-range image data for rendering, environment lighting, or technical HDR processing.
It is useful for lighting assets and specialized imaging pipelines.
DJVU at a glance
DJVU
Convert to DjVu when the source is a scanned document set and the goal is a compact, page-faithful file for archival reading or repository distribution.
It is a good target for books, historical periodicals, manuals, and other materials that are fundamentally page images rather than editable text documents.
If broad end-user compatibility is the priority, PDF is usually the easier delivery format.
Format comparison
| Feature | HDR | DJVU |
|---|---|---|
| File type | Image | Document |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | medium | medium |
| Compatibility | broad | broad |
| Editability | moderate | moderate |
| Created year | 1989 | 1998 |
| Inventor | Greg Ward | AT&T Labs |
| Status | active | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | strong |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | delivery | exchange |
| Vector scaling | Not supported | Not supported |
When to use each format
When to use HDR
- capture ingest
- editing
- web or print delivery
- Supports workflows where dynamic range matters more than consumer display compatibility.
When to use DJVU
- authoring
- review and collaboration
- distribution
- Strong historical fit for scanned documents.
FAQs
Why convert HDR to DJVU?
Convert to DjVu when the source is a scanned document set and the goal is a compact, page-faithful file for archival reading or repository distribution.
It is a good target for books, historical periodicals, manuals, and other materials that are fundamentally page images rather than editable text documents.
If broad end-user compatibility is the priority, PDF is usually the easier delivery format.
What changes when converting HDR to DJVU?
This conversion changes how the format behaves in downstream tools and delivery environments.
Archival profile changes from moderate in HDR to strong in DJVU. Workflow profile changes from delivery in HDR to exchange in DJVU.
What should I review after converting HDR to DJVU?
Check the exported file for Niche compared with PDF for mainstream sharing.; Often converted to more universal fixed-layout formats for current use..