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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.
ERF at a glance
ERF
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | VML | ERF |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2004 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Epson |
| Status | legacy | proprietary |
| 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 ERF.
- VML is commonly used in vector workflows.
When to use ERF
- Your target workflow expects ERF.
- Improve delivery compatibility with ERF.
- ERF is commonly used in image workflows.
FAQs
Why convert VML to ERF?
Convert to ERF when preserving or restoring Epson-origin raw captures in an archive or compatibility workflow.
In most contemporary pipelines, it is a legacy source format to retain or migrate.
What changes when converting VML to ERF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to ERF removes vector scaling.
What should I review after converting VML to ERF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.