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MDC at a glance
MDC
Convert to MDC when preserving an older proprietary raw archive or interfacing with a workflow that still expects that format.
It is mainly useful for historical compatibility and migration.
SVGZ at a glance
SVGZ
Convert to SVGZ when you need SVG semantics but want the file itself stored or transmitted in compressed form.
It is most useful for web asset pipelines, map layers, and technical graphics repositories where vector fidelity matters and pre-compressed files are already part of the deployment model.
If the downstream environment already applies gzip or brotli to ordinary SVG responses, plain SVG is often easier to work with.
Choose SVGZ when the consumer explicitly expects it or when archived asset size is worth prioritizing.
Format comparison
| Feature | MDC | SVGZ |
|---|---|---|
| File type | Image | Vector |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | scalable |
| File size characteristics | large | small |
| Compatibility | limited | moderate |
| Editability | high | high |
| Created year | 2003 | 2001 |
| Inventor | Minolta (now Sony) | World Wide Web Consortium (W3C) |
| Status | proprietary | active |
| Transparency | ❌ | ❌ |
| Animation | ❌ | ❌ |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | good |
| Metadata handling | rich | moderate |
| Delivery profile | limited | strong |
| Workflow fit | source | design |
| Layer support | ❌ | ❌ |
| Vector scaling | ❌ | ✔️ |
When to use each format
When to use MDC
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
When to use SVGZ
- illustration
- diagramming
- brand asset delivery
- Significantly smaller than uncompressed SVG.
FAQs
Why convert MDC to SVGZ?
Convert to SVGZ when you need SVG semantics but want the file itself stored or transmitted in compressed form.
It is most useful for web asset pipelines, map layers, and technical graphics repositories where vector fidelity matters and pre-compressed files are already part of the deployment model.
If the downstream environment already applies gzip or brotli to ordinary SVG responses, plain SVG is often easier to work with.
Choose SVGZ when the consumer explicitly expects it or when archived asset size is worth prioritizing.
What changes when converting MDC to SVGZ?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from large in MDC to small in SVGZ. Quality profile changes from raw in MDC to scalable in SVGZ. Compatibility profile changes from limited in MDC to moderate in SVGZ. Archival profile changes from strong in MDC to good in SVGZ. Metadata profile changes from rich in MDC to moderate in SVGZ. Delivery profile changes from limited in MDC to strong in SVGZ. Workflow profile changes from source in MDC to design in SVGZ.
Moving to SVGZ adds vector scaling.
What should I review after converting MDC to SVGZ?
Check the exported file for Not human-readable without decompression.; Requires correct HTTP headers for web delivery.; Cannot be edited directly — must decompress first..