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DOCM at a glance
DOCM
DOCM arrived in the post-binary Office era as Microsoft split macro-enabled and macro-free documents into distinct extensions, making trust and security policy easier to reason about.
JXR at a glance
JXR
JPEG XR grew from Microsoft's HD Photo work and then moved through standards bodies, but it remained much more niche than formats such as JPEG, PNG, or later AVIF/WebP families.
Format comparison
| Feature | DOCM | JXR |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2007 | 2009 |
| Inventor | Microsoft | Microsoft |
| Status | active | active |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use DOCM
- Your source file is already in DOCM.
- Preserve source expectations before exporting to JXR.
- DOCM is commonly used in document workflows.
When to use JXR
- Your target workflow expects JXR.
- Improve delivery compatibility with JXR.
- JXR is commonly used in image workflows.
FAQs
Why convert DOCM to JXR?
Convert to JXR when the receiving environment explicitly expects JPEG XR or when recovering historical assets from that ecosystem.
For broader distribution, TIFF, PNG, AVIF, or WebP are usually easier choices.
What changes when converting DOCM to JXR?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting DOCM to JXR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.