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DNG at a glance
DNG
DNG emerged when professional photo workflows were already fragmented across many undocumented vendor raw formats. Adobe positioned it as a common archival and interchange option rather than just another camera-native format.
PGX at a glance
PGX
These formats persist in engineering, compression research, and conversion-tool contexts where simple sample storage or adjunct technical representation is useful.
Format comparison
| Feature | DNG | PGX |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 2000 |
| Inventor | Adobe | ISO/IEC (JPEG 2000 committee) |
| Status | active | active |
| 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 | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use DNG
- Your source file is already in DNG.
- Preserve source expectations before exporting to PGX.
- DNG is commonly used in image workflows.
When to use PGX
- Your target workflow expects PGX.
- Improve delivery compatibility with PGX.
- PGX is commonly used in image workflows.
FAQs
Why convert DNG to PGX?
Convert to PGX when a technical imaging or codec workflow expects grayscale component data in a simple specialist format.
It is useful for research, testing, and standards-oriented image processing.
What changes when converting DNG to PGX?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PGX removes camera raw data.
What should I review after converting DNG to PGX?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.