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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.
NanoMD at a glance
NanoMD
NanoMD represents the recurring tendency in documentation tooling to carve out restricted markdown subsets whenever implementers value deterministic parsing, low overhead, and minimal feature surfaces over full compatibility.
Format comparison
| Feature | WMF | NanoMD |
|---|---|---|
| File type | Vector | Document |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1990 | 2020 |
| Inventor | Microsoft Corporation | Community (Markdown variant) |
| Status | legacy | active |
| Primary use cases |
|
|
| Vector scaling | Supported | Not supported |
| Structured data | Not 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 NanoMD.
- WMF is commonly used in vector workflows.
When to use NanoMD
- Your target workflow expects NanoMD.
- Improve delivery compatibility with NanoMD.
- NanoMD is commonly used in document workflows.
FAQs
Why convert WMF to NanoMD?
Convert to NanoMD when the destination expects a restricted Markdown subset for internal docs, firmware-adjacent help files, or deliberately simple publishing workflows.
It is a good target when parser simplicity, deterministic formatting, or low-overhead tooling matters more than advanced authoring features.
What changes when converting WMF to NanoMD?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to NanoMD removes vector scaling.
What should I review after converting WMF to NanoMD?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.