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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.
KRA at a glance
KRA
Krita's native format reflects the rise of open-source digital painting as a serious creative workflow rather than only a hobbyist alternative.
Format comparison
| Feature | PFM Raw | KRA |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2005 |
| Inventor | PBRT / Paul Debevec community | Krita / KDE community |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | 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 KRA.
- PFM Raw is commonly used in image workflows.
When to use KRA
- Your target workflow expects KRA.
- Improve delivery compatibility with KRA.
- KRA is commonly used in image workflows.
FAQs
Why convert PFM Raw to KRA?
Convert to KRA when the artwork needs to remain editable in Krita, especially for painting-heavy or layered illustration workflows.
It is the right target for preserving native editability during digital-art production.
What changes when converting PFM Raw to KRA?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to KRA adds layer support. Moving to KRA removes HDR content.
What should I review after converting PFM Raw to KRA?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.