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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.
XWD at a glance
XWD
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 | XWD |
|---|---|---|
| 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 | 1988 |
| Inventor | John Gruber and Aaron Swartz | MIT X Consortium |
| 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 XWD
- capture ingest
- editing
- web or print delivery
- Important for long-tail compatibility and archival conversion.
FAQs
Why convert MD to XWD?
Choose XWD as target when preserving or processing X11 screen captures and historical Unix desktop imagery.
What changes when converting MD to XWD?
Convert to XWD when preserving or processing X11 screen captures and historical Unix desktop imagery. It is useful for compatibility with legacy window-dump workflows and technical archive tasks.
What should I review after converting MD to XWD?
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 XWD 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.