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PGM Raw at a glance
PGM Raw
The raw PGM branch reflects the practical evolution of Netpbm-style tool formats: keep the tiny header and easy parsing, but move the pixel raster into a binary form that is much more usable for real data sizes.
MDC at a glance
MDC
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | PGM Raw | MDC |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 2003 |
| Inventor | Jef Poskanzer | Minolta (now Sony) |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use PGM Raw
- Your source file is already in PGM Raw.
- Preserve source expectations before exporting to MDC.
- PGM Raw is commonly used in image workflows.
When to use MDC
- Your target workflow expects MDC.
- Improve delivery compatibility with MDC.
- MDC is commonly used in image workflows.
FAQs
Why convert PGM Raw to 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.
What changes when converting PGM Raw to MDC?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to MDC adds camera raw data.
What should I review after converting PGM Raw to MDC?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.