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CDR at a glance
CDR
CorelDRAW was developed by Corel engineers Michel Bouillan and Pat Beirne in 1987 to bundle with Corel's desktop publishing systems. The inclusion of TrueType support in Windows 3.1 transformed CorelDRAW into a serious illustration program.
IIQ at a glance
IIQ
Phase One positioned IIQ around its medium-format and digital-back workflows, which is why IIQ appears in a very different professional context from ordinary consumer camera raws.
Format comparison
| Feature | CDR | IIQ |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1989 | 2007 |
| Inventor | Corel Corporation | Phase One |
| Status | active | 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 CDR
- Your source file is already in CDR.
- Preserve source expectations before exporting to IIQ.
- CDR is commonly used in vector workflows.
When to use IIQ
- Your target workflow expects IIQ.
- Improve delivery compatibility with IIQ.
- IIQ is commonly used in image workflows.
FAQs
Why convert CDR to IIQ?
Convert to IIQ when preserving Phase One originals or keeping compatibility with medium-format studio workflows built around Capture One and Phase One hardware.
It is an archival and editing format for premium photographic production.
What changes when converting CDR to IIQ?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to IIQ removes vector scaling.
What should I review after converting CDR to IIQ?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.