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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.
PNM Raw at a glance
PNM Raw
PNM survived because engineers kept needing a no-drama raster family for scripts, fixtures, codecs, and image-processing experiments where the format should not be the hard part.
Format comparison
| Feature | MD | PNM Raw |
|---|---|---|
| File type | Document | Image |
| Extensions |
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| MIME type |
|
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| Created year | 2004 | 1988 |
| Inventor | John Gruber and Aaron Swartz | Jef Poskanzer |
| 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 PNM Raw.
- MD is commonly used in document workflows.
When to use PNM Raw
- Your target workflow expects PNM Raw.
- Improve delivery compatibility with PNM Raw.
- PNM Raw is commonly used in image workflows.
FAQs
Why convert MD to PNM Raw?
Convert to PNM raw when you need a no-frills lossless raster format for scripts, benchmarking, image-processing experiments, or toolchains that prefer direct pixel access with minimal container complexity.
It is especially useful as an intermediate representation between automated processing steps.
What changes when converting MD to PNM Raw?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MD to PNM Raw?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.