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WMF at a glance
WMF
The original WMF specification was published in the Windows 3.1 SDK documentation in 1992. Aldus Corporation independently added a 'placeable' header for device independence, which Microsoft later incorporated in Windows 2000. The format specification was republished in 2006 under the Microsoft Open Specification Promise.
JPF at a glance
JPF
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.
Format comparison
| Feature | WMF | JPF |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1990 | 2000 |
| Inventor | Microsoft Corporation | Joint Photographic Experts Group |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Supported |
When to use each format
When to use WMF
- Your source file is already in WMF.
- Preserve source expectations before exporting to JPF.
- WMF is commonly used in vector workflows.
When to use JPF
- Your target workflow expects JPF.
- Improve delivery compatibility with JPF.
- JPF is commonly used in image workflows.
FAQs
Why convert WMF to JPF?
Convert to JPF when a standards-based JPEG 2000 workflow explicitly expects that container variant.
It is useful in specialist preservation and institutional imaging systems.
What changes when converting WMF to JPF?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting WMF to JPF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.