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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.
MOS at a glance
MOS
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | MD | MOS |
|---|---|---|
| File type | Document | Image |
| Extensions |
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| MIME type |
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| Created year | 2004 | 2003 |
| Inventor | John Gruber and Aaron Swartz | Leaf (now Phase One) |
| Status | active | proprietary |
| 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 MOS.
- MD is commonly used in document workflows.
When to use MOS
- Your target workflow expects MOS.
- Improve delivery compatibility with MOS.
- MOS is commonly used in image workflows.
FAQs
Why convert MD to MOS?
Convert to MOS when maintaining compatibility with Leaf-originated capture files or preserving source material from medium-format studio workflows.
It is primarily an archival and editing format.
What changes when converting MD to MOS?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MD to MOS?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.