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VML at a glance
VML
VML emerged as a 1998 W3C submission backed by Microsoft and partners such as Autodesk, Hewlett-Packard, Macromedia, and Visio, reflecting the moment when web graphics standards were still unsettled.
DIB at a glance
DIB
These formats reflect how desktop operating systems built their own graphics-resource conventions for cursors, icons, and device-independent drawing.
Format comparison
| Feature | VML | DIB |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 1990 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Microsoft / Windows ecosystem |
| 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 VML
- Your source file is already in VML.
- Preserve source expectations before exporting to DIB.
- VML is commonly used in vector workflows.
When to use DIB
- Your target workflow expects DIB.
- Improve delivery compatibility with DIB.
- DIB is commonly used in image workflows.
FAQs
Why convert VML to DIB?
Convert to DIB when a Windows application, print path, or clipboard-oriented workflow expects device-independent bitmap data.
It is useful for compatibility and low-level graphics exchange inside desktop systems.
What changes when converting VML to DIB?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to DIB removes vector scaling.
What should I review after converting VML to DIB?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.