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PNG at a glance
PNG
PNG emerged in the mid-1990s as a web-friendly alternative to GIF, and the format later became part of the W3C standards stack.
RAF at a glance
RAF
Fujifilm's digital-camera identity tied raw capture not just to sensor data but also to a brand-specific color and workflow story, which gives RAF a recognizably different practical role from some rival raw families.
Format comparison
| Feature | PNG | RAF |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1996 | 2000 |
| Inventor | PNG Development Group | Fujifilm |
| Status | active | proprietary |
| 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 | Supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use PNG
- Your source file is already in PNG.
- Preserve source expectations before exporting to RAF.
- PNG is commonly used in image workflows.
When to use RAF
- Your target workflow expects RAF.
- Improve delivery compatibility with RAF.
- RAF is commonly used in image workflows.
FAQs
Why convert PNG to RAF?
Convert to RAF when preserving Fujifilm camera originals or handing files back into a Fujifilm-oriented raw workflow.
It is appropriate for archive masters and non-destructive photographic editing.
What changes when converting PNG to RAF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to RAF adds camera raw data.
What should I review after converting PNG to RAF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.