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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.
XPM at a glance
XPM
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | MD | XPM |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | medium | medium |
| Compatibility | broad | broad |
| Editability | moderate | moderate |
| Created year | 2004 | 1989 |
| Inventor | John Gruber and Aaron Swartz | Daniel Dardailler, Colas Nahaboo (Groupe Bull) |
| Status | active | legacy |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | exchange | delivery |
| Vector scaling | Not supported | Not supported |
When to use each format
When to use MD
- authoring
- review and collaboration
- distribution
- Readable in raw plain text.
When to use XPM
- capture ingest
- editing
- web or print delivery
- Important for long-tail compatibility and archival conversion.
FAQs
Why convert MD to XPM?
Choose XPM as target when maintaining or restoring X11-era icon assets or other historical Unix interface graphics.
What changes when converting MD to XPM?
Convert to XPM when maintaining or restoring X11-era icon assets or other historical Unix interface graphics. It is useful where text-based icon compatibility matters more than modern compression.
What should I review after converting MD to XPM?
After conversion, review these destination checks: Open converted output in ImageMagick and verify behavior on real samples; Compare output against the expected depends quality profile; Poor fit for modern mainstream publishing.
How can I keep quality stable in MD to XPM conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Tool support can be uneven and workflow-specific; Poor fit for modern mainstream publishing; Validate destination compatibility before large-batch conversion.