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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.
FLV at a glance
FLV
FLV is inseparable from the Flash era of online media, when browser plugins rather than native video elements dominated streaming video experiences.
Format comparison
| Feature | PGM Raw | FLV |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 2002 |
| Inventor | Jef Poskanzer | Macromedia / Adobe |
| 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 FLV.
- PGM Raw is commonly used in image workflows.
When to use FLV
- Your target workflow expects FLV.
- Improve delivery compatibility with FLV.
- FLV is commonly used in video workflows.
FAQs
Why convert PGM Raw to FLV?
Convert to FLV when dealing with Flash-era website archives, old courseware, or inherited streaming libraries that still preserve their media in Flash Video form.
It is useful for recovery and compatibility with historical systems.
For any new online distribution, MP4 or WebM are the correct modern targets.
What changes when converting PGM Raw to FLV?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to FLV adds streaming delivery.
What should I review after converting PGM Raw to FLV?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.