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PFM Raw at a glance
PFM Raw
PFM persists from the era when HDR imaging, rendering research, and tone-mapping workflows needed straightforward file carriers for floating-point image data long before mainstream consumer HDR delivery formats matured.
XBM at a glance
XBM
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | PFM Raw | XBM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 1985 |
| Inventor | PBRT / Paul Debevec community | MIT X Consortium |
| Status | active | legacy |
| 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 | Not supported |
| HDR support | Supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use PFM Raw
- Your source file is already in PFM Raw.
- Preserve source expectations before exporting to XBM.
- PFM Raw is commonly used in image workflows.
When to use XBM
- Your target workflow expects XBM.
- Improve delivery compatibility with XBM.
- XBM is commonly used in image workflows.
FAQs
Why convert PFM Raw to XBM?
Convert to XBM when preserving legacy X11 bitmap assets or interfacing with very old Unix UI workflows.
In modern contexts it is chiefly a compatibility target.
What changes when converting PFM Raw to XBM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to XBM removes HDR content.
What should I review after converting PFM Raw to XBM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.