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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.
HEIF at a glance
HEIF
HEIF was developed by MPEG and built on the ISO Base Media File Format lineage, which helps explain why it feels more like a modern media container for images than a simple legacy bitmap file.
Format comparison
| Feature | VML | HEIF |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2015 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Moving Picture Experts Group (MPEG) |
| 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 | Not supported |
When to use each format
When to use VML
- Your source file is already in VML.
- Preserve source expectations before exporting to HEIF.
- VML is commonly used in vector workflows.
When to use HEIF
- Your target workflow expects HEIF.
- Improve delivery compatibility with HEIF.
- HEIF is commonly used in image workflows.
FAQs
Why convert VML to HEIF?
Convert to HEIF when the destination benefits from modern image containers that can preserve more than a single flat raster, such as advanced mobile-photo workflows or efficient high-quality storage.
It is a strong target in contemporary imaging ecosystems.
What changes when converting VML to HEIF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to HEIF removes vector scaling.
What should I review after converting VML to HEIF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.