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JPM at a glance
JPM
JPEG 2000 arrived as a major standards effort to improve on classic JPEG, but its practical adoption concentrated in specialist domains rather than in the universal browser-and-camera role held by JPEG.
PSB at a glance
PSB
Photoshop's native format became one of the de facto interchange anchors of raster design and retouching, even outside Adobe-only teams, because so many creative pipelines converged around its feature set.
Format comparison
| Feature | JPM | PSB |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2000 | 1990 |
| Inventor | Joint Photographic Experts Group | Adobe |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Supported | Supported |
| Vector scaling | Supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use JPM
- Your source file is already in JPM.
- Preserve source expectations before exporting to PSB.
- JPM is commonly used in image workflows.
When to use PSB
- Your target workflow expects PSB.
- Improve delivery compatibility with PSB.
- PSB is commonly used in image workflows.
FAQs
Why convert JPM to PSB?
Convert to PSB when the image must remain editable in Photoshop at very large dimensions or layer counts.
It is useful for oversized composites, print backdrops, and complex production artwork.
What changes when converting JPM to PSB?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PSB removes vector scaling.
What should I review after converting JPM to PSB?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.