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BPG at a glance
BPG
BPG arrived in the mid-2010s when image engineers were looking for better post-JPEG compression before AVIF and JPEG XL had ecosystem momentum.
ORA at a glance
ORA
OpenRaster emerged from the libre graphics community as a practical answer to the lack of a clean open interchange format for layered raster artwork.
Format comparison
| Feature | BPG | ORA |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2014 | 2006 |
| Inventor | Fabrice Bellard | Libre Graphics community |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | 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 | Supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use BPG
- Your source file is already in BPG.
- Preserve source expectations before exporting to ORA.
- BPG is commonly used in image workflows.
When to use ORA
- Your target workflow expects ORA.
- Improve delivery compatibility with ORA.
- ORA is commonly used in image workflows.
FAQs
Why convert BPG to ORA?
Convert to ORA when you need a layered raster file that remains editable across open creative applications.
It is a good target for illustration handoff, collaborative painting workflows, and vendor-neutral layered artwork exchange.
What changes when converting BPG to ORA?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to ORA removes animation support. Moving to ORA adds layer support. Moving to ORA removes HDR content.
What should I review after converting BPG to ORA?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.