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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.
XBM at a glance
XBM
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.
Format comparison
| Feature | WMF | XBM |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1990 | 1985 |
| Inventor | Microsoft Corporation | MIT X Consortium |
| Status | legacy | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Not supported |
When to use each format
When to use WMF
- Your source file is already in WMF.
- Preserve source expectations before exporting to XBM.
- WMF is commonly used in vector workflows.
When to use XBM
- Your target workflow expects XBM.
- Improve delivery compatibility with XBM.
- XBM is commonly used in image workflows.
FAQs
Why convert WMF to XBM?
Convert to XBM when preserving legacy X11 bitmap assets or interfacing with very old Unix UI workflows.
In modern contexts it is chiefly a compatibility target.
What changes when converting WMF to XBM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to XBM removes vector scaling.
What should I review after converting WMF to XBM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.