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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.
ICO at a glance
ICO
ICO grew with the Windows desktop experience, where applications needed icons that scaled across shell views, toolbars, shortcuts, and later higher-DPI environments.
Format comparison
| Feature | CDR | ICO |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1989 | 1985 |
| Inventor | Corel Corporation | Microsoft |
| Status | active | active |
| 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 ICO.
- CDR is commonly used in vector workflows.
When to use ICO
- Your target workflow expects ICO.
- Improve delivery compatibility with ICO.
- ICO is commonly used in image workflows.
FAQs
Why convert CDR to ICO?
Convert to ICO when preparing Windows application icons, installer assets, or other desktop-interface graphics that require native icon packaging.
It is useful when multiple icon sizes must travel in a single platform-friendly file.
What changes when converting CDR to ICO?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to ICO removes vector scaling.
What should I review after converting CDR to ICO?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.