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WEBM at a glance
WEBM
The WebM Project launched the format in 2010 to provide an open web-video option built around VPx video codecs and Vorbis or Opus audio.
PFM at a glance
PFM
These formats persist in engineering, compression research, and conversion-tool contexts where simple sample storage or adjunct technical representation is useful.
Format comparison
| Feature | WEBM | PFM |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2010 | 1995 |
| Inventor | Paul Debevec | |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Supported |
| Streaming ready | Supported | Not supported |
When to use each format
When to use WEBM
- Your source file is already in WEBM.
- Preserve source expectations before exporting to PFM.
- WEBM is commonly used in video workflows.
When to use PFM
- Your target workflow expects PFM.
- Improve delivery compatibility with PFM.
- PFM is commonly used in image workflows.
FAQs
Why convert WEBM to PFM?
Convert to PFM when high-precision floating-point image data must survive for rendering, HDR processing, or technical analysis.
It is useful as a working format in graphics and research pipelines.
What changes when converting WEBM to PFM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PFM removes layer support. Moving to PFM adds HDR content. Moving to PFM removes streaming delivery.
What should I review after converting WEBM to PFM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.