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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.
OGV at a glance
OGV
OGV is tied to the era of HTML5 video format debates and open-web media politics.
Format comparison
| Feature | PGM Raw | OGV |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 2007 |
| Inventor | Jef Poskanzer | Xiph.Org |
| 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 | 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 OGV.
- PGM Raw is commonly used in image workflows.
When to use OGV
- Your target workflow expects OGV.
- Improve delivery compatibility with OGV.
- OGV is commonly used in video workflows.
FAQs
Why convert PGM Raw to OGV?
Convert to OGV when you need compatibility with open-video archives, standards-focused projects, or historical web assets that relied on Ogg-based video delivery.
It is useful for preservation and controlled open-format distribution.
For present-day browser and platform reach, MP4 or WebM are usually better choices.
What changes when converting PGM Raw to OGV?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting PGM Raw to OGV?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.