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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.
MetaPost at a glance
MetaPost
John Hobby developed MetaPost from MetaFont ideas, and the system later evolved into the MPlib era so TeX and LuaTeX workflows could keep high-quality vector graphics close to typeset documents.
Format comparison
| Feature | XPM | MetaPost |
|---|---|---|
| File type | Image | Vector |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | scalable |
| File size characteristics | medium | small |
| Compatibility | broad | moderate |
| Editability | moderate | high |
| Created year | 1989 | 1994 |
| Inventor | Daniel Dardailler, Colas Nahaboo (Groupe Bull) | John Hobby |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | good |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | delivery | design |
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Supported |
When to use each format
When to use XPM
- capture ingest
- editing
- web or print delivery
- Important for long-tail compatibility and archival conversion.
When to use MetaPost
- illustration
- diagramming
- brand asset delivery
- Excellent fit for programmatic technical diagrams.
FAQs
Why convert XPM to MetaPost?
Choose MetaPost as target when precise technical diagram generation for academic papers and textbooks, mathematical figure production in TeX and LaTeX publishing workflows.
What changes when converting XPM to MetaPost?
Precise technical diagram generation for academic papers and textbooks, mathematical figure production in TeX and LaTeX publishing workflows.
What should I review after converting XPM to MetaPost?
After conversion, review these destination checks: Open converted output in MetaPost and verify behavior on real samples; Compare output against the expected scalable quality profile; Much narrower ecosystem than mainstream illustration formats.
How can I keep quality stable in XPM to MetaPost conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Often converted onward for broader design or web delivery workflows; Much narrower ecosystem than mainstream illustration formats; Validate destination compatibility before large-batch conversion.