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VML in sintesi
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.
PGX in sintesi
PGX
These formats persist in engineering, compression research, and conversion-tool contexts where simple sample storage or adjunct technical representation is useful.
Confronto tra formati
| Caratteristica | VML | PGX |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
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| Created year | 1998 | 2000 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | ISO/IEC (JPEG 2000 committee) |
| Status | legacy | active |
| Transparency | Non supportato | Non supportato |
| Animation | Non supportato | Non supportato |
| Primary use cases |
|
|
| Layer support | Non supportato | Non supportato |
| Vector scaling | Supportato | Non supportato |
Quando usare ciascun formato
When to use VML
- Your source file is already in VML.
- Preserve source expectations before exporting to PGX.
- VML is commonly used in vector workflows.
When to use PGX
- Your target workflow expects PGX.
- Improve delivery compatibility with PGX.
- PGX is commonly used in image workflows.
Domande frequenti
Why convert VML to PGX?
Convert to PGX when a technical imaging or codec workflow expects grayscale component data in a simple specialist format.
It is useful for research, testing, and standards-oriented image processing.
What changes when converting VML to PGX?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PGX removes vector scaling.
What should I review after converting VML to PGX?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.