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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.
PSD at a glance
PSD
Photoshop's native format became one of the de facto interchange anchors of raster design and retouching, even outside Adobe-only teams, because so many creative pipelines converged around its feature set.
Format comparison
| Feature | ICO | PSD |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1985 | 1990 |
| Inventor | Microsoft | Adobe |
| Status | active | proprietary |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ICO
- Your source file is already in ICO.
- Preserve source expectations before exporting to PSD.
- ICO is commonly used in image workflows.
When to use PSD
- Your target workflow expects PSD.
- Improve delivery compatibility with PSD.
- PSD is commonly used in image workflows.
FAQs
Why convert ICO to PSD?
Convert to PSD when artwork must remain editable in Photoshop, especially for retouching, compositing, layered design, or collaborative production handoff.
It is the right target for preserving Adobe-native editing structure.
What changes when converting ICO to PSD?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PSD adds layer support.
What should I review after converting ICO to PSD?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.