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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.
MKV at a glance
MKV
Matroska developed a strong reputation in enthusiast and archiving communities before later being formalized through IETF standardization.
Format comparison
| Feature | PGM Raw | MKV |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 2002 |
| Inventor | Jef Poskanzer | Matroska |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | 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 MKV.
- PGM Raw is commonly used in image workflows.
When to use MKV
- Your target workflow expects MKV.
- Improve delivery compatibility with MKV.
- MKV is commonly used in video workflows.
FAQs
Why convert PGM Raw to MKV?
Convert to MKV when you need multiple tracks, subtitle support, chaptering, or less common codec combinations in a single container.
It is ideal for archival masters, media-library organisation, multilingual releases, and technical video handoff.
For mainstream web playback and easiest consumer sharing, MP4 is usually simpler.
What changes when converting PGM Raw to MKV?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to MKV adds streaming delivery.
What should I review after converting PGM Raw to MKV?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.