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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.
WEBP at a glance
WEBP
Google announced WebP in 2010 for faster image delivery on the web, and the format is now documented in RFC 9649.
Format comparison
| Feature | WMF | WEBP |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1990 | 2010 |
| Inventor | Microsoft Corporation | |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | 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 WEBP.
- WMF is commonly used in vector workflows.
When to use WEBP
- Your target workflow expects WEBP.
- Improve delivery compatibility with WEBP.
- WEBP is commonly used in image workflows.
FAQs
Why convert WMF to WEBP?
Convert to WebP when delivering images for the web or apps and you want strong compression with support for transparency or animation.
It is a practical target for responsive sites, ecommerce, editorial media, and interface assets.
What changes when converting WMF to WEBP?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to WEBP adds animation support. Moving to WEBP removes vector scaling.
What should I review after converting WMF to WEBP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.