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APNG in het kort
APNG
APNG started as a Mozilla-driven attempt to bring better animation into the PNG ecosystem. Its practical relevance increased once modern browsers and toolchains treated it as a viable web animation target.
XPM in het kort
XPM
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.
Formaatvergelijking
| Kenmerk | APNG | XPM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 1989 |
| Inventor | Mozilla community | Daniel Dardailler, Colas Nahaboo (Groupe Bull) |
| Status | active | legacy |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Vector scaling | Niet ondersteund | Niet ondersteund |
| Camera raw data | Niet ondersteund | Niet ondersteund |
| HDR support | Niet ondersteund | Niet ondersteund |
| Streaming ready | Ondersteund | Niet ondersteund |
Wanneer je elk formaat gebruikt
When to use APNG
- Your source file is already in APNG.
- Preserve source expectations before exporting to XPM.
- APNG is commonly used in image workflows.
When to use XPM
- Your target workflow expects XPM.
- Improve delivery compatibility with XPM.
- XPM is commonly used in image workflows.
Veelgestelde vragen
Why convert APNG to XPM?
Convert to XPM when maintaining or restoring X11-era icon assets or other historical Unix interface graphics.
It is useful where text-based icon compatibility matters more than modern compression.
What changes when converting APNG to XPM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to XPM removes streaming delivery.
What should I review after converting APNG to XPM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.