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PEF at a glance
PEF
Convert to PEF when preserving Pentax camera originals or maintaining a Pentax-oriented raw workflow.
It is useful for archive masters and editable photographic captures.
WMF at a glance
WMF
Convert to WMF when preserving compatibility with older Windows document workflows, embedded legacy graphics, or archive recovery tasks where that classic metafile format is still expected.
It is useful as a bridge for historical Office-era vector assets.
For contemporary vector exchange, EMF, SVG, or PDF are usually more practical.
Format comparison
| Feature | PEF | WMF |
|---|---|---|
| File type | Image | Vector |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | scalable |
| File size characteristics | large | small |
| Compatibility | limited | moderate |
| Editability | high | high |
| Created year | 2006 | 1990 |
| Inventor | Pentax (now Ricoh) | Microsoft Corporation |
| Status | proprietary | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | good |
| Metadata handling | rich | moderate |
| Delivery profile | limited | strong |
| Workflow fit | source | design |
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Supported |
When to use each format
When to use PEF
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
When to use WMF
- illustration
- diagramming
- brand asset delivery
- Universal recognition in Windows applications.
FAQs
Why convert PEF to WMF?
Convert to WMF when preserving compatibility with older Windows document workflows, embedded legacy graphics, or archive recovery tasks where that classic metafile format is still expected.
It is useful as a bridge for historical Office-era vector assets.
For contemporary vector exchange, EMF, SVG, or PDF are usually more practical.
What changes when converting PEF to WMF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from large in PEF to small in WMF. Quality profile changes from raw in PEF to scalable in WMF. Compatibility profile changes from limited in PEF to moderate in WMF. Archival profile changes from strong in PEF to good in WMF. Metadata profile changes from rich in PEF to moderate in WMF. Delivery profile changes from limited in PEF to strong in WMF. Workflow profile changes from source in PEF to design in WMF.
Moving to WMF adds vector scaling.
What should I review after converting PEF to WMF?
Check the exported file for 16-bit format with limited precision.; Not truly device-independent without placeable header.; Security vulnerabilities have been discovered historically..