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WBMP at a glance
WBMP
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
PGM at a glance
PGM
PBM, PGM, PPM, PNM, and later PAM come from the tool-centric tradition of keeping image interchange formats easy to parse, script, and transform.
Format comparison
| Feature | WBMP | PGM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 1988 |
| Inventor | WAP Forum (now Open Mobile Alliance) | Jef Poskanzer / Netpbm lineage |
| Status | legacy | 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 | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use WBMP
- Your source file is already in WBMP.
- Preserve source expectations before exporting to PGM.
- WBMP is commonly used in image workflows.
When to use PGM
- Your target workflow expects PGM.
- Improve delivery compatibility with PGM.
- PGM is commonly used in image workflows.
FAQs
Why convert WBMP to PGM?
Convert to PGM when you need a straightforward grayscale raster for scripting, research, or low-overhead image processing.
It is a good target for technical pipelines and intermediate data exchange.
What changes when converting WBMP to PGM?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting WBMP to PGM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.