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DOC at a glance
DOC
DOC belongs to the older binary Office family that Microsoft later documented through its Open Specifications work, reflecting its long period of real-world dominance before DOCX.
RAS at a glance
RAS
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | DOC | RAS |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1987 | 1987 |
| Inventor | Microsoft | Sun Microsystems |
| Status | active | legacy |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use DOC
- Your source file is already in DOC.
- Preserve source expectations before exporting to RAS.
- DOC is commonly used in document workflows.
When to use RAS
- Your target workflow expects RAS.
- Improve delivery compatibility with RAS.
- RAS is commonly used in image workflows.
FAQs
Why convert DOC to RAS?
Convert to RAS when preserving compatibility with historical Sun or Unix image assets.
In most modern contexts it serves as a migration and archive-recovery format.
What changes when converting DOC to RAS?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting DOC to RAS?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.