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WPS at a glance
WPS
Microsoft Works created its own long tail of document files among home and small-business users who never lived entirely inside the full Office suite.
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 | WPS | PSB |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1987 | 1990 |
| Inventor | Microsoft | Adobe |
| Status | active | proprietary |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use WPS
- Your source file is already in WPS.
- Preserve source expectations before exporting to PSB.
- WPS is commonly used in document 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 WPS 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 WPS to PSB?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting WPS to PSB?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.