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DNG at a glance
DNG
DNG emerged when professional photo workflows were already fragmented across many undocumented vendor raw formats. Adobe positioned it as a common archival and interchange option rather than just another camera-native format.
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 | DNG | ICO |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 1985 |
| Inventor | Adobe | 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 | Not supported | Not supported |
| Camera raw data | Supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use DNG
- Your source file is already in DNG.
- Preserve source expectations before exporting to ICO.
- DNG is commonly used in image 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 DNG 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 DNG to ICO?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to ICO removes camera raw data.
What should I review after converting DNG to ICO?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.