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MD at a glance
MD
Markdown was created in 2004 by John Gruber with Aaron Swartz, but the later CommonMark effort became important because the original syntax description was too ambiguous to keep implementations aligned.
HDR at a glance
HDR
HDR raster formats became important in rendering and lighting workflows before consumer-facing HDR delivery stories matured in mainstream media formats.
Format comparison
| Feature | MD | HDR |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
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| MIME type |
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| Created year | 2004 | 1989 |
| Inventor | John Gruber and Aaron Swartz | Greg Ward |
| Status | active | active |
| Primary use cases |
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| Vector scaling | Not supported | Not supported |
When to use each format
When to use MD
- Your source file is already in MD.
- Preserve source expectations before exporting to HDR.
- MD is commonly used in document workflows.
When to use HDR
- Your target workflow expects HDR.
- Improve delivery compatibility with HDR.
- HDR is commonly used in image workflows.
FAQs
Why convert MD to 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.
What changes when converting MD to HDR?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MD to HDR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.