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KRA at a glance
KRA
Convert to KRA when the artwork needs to remain editable in Krita, especially for painting-heavy or layered illustration workflows.
It is the right target for preserving native editability during digital-art production.
FB2 at a glance
FB2
Convert to FB2 when targeting reading environments or libraries that explicitly support FictionBook, especially for prose-heavy works, personal ebook collections, or regional distribution where FB2 remains common.
It is useful when semantic text structure matters more than elaborate layout.
For wider global interoperability, EPUB is usually the safer target.
Format comparison
| Feature | KRA | FB2 |
|---|---|---|
| File type | Image | Ebook |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | reflowable |
| File size characteristics | medium | small |
| Compatibility | broad | moderate |
| Editability | moderate | moderate |
| Created year | 2005 | 2004 |
| Inventor | Krita / KDE community | Russian eBook community |
| Status | proprietary | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | delivery | reading |
When to use each format
When to use KRA
- capture ingest
- editing
- web or print delivery
- Preserves editor-specific layered working state.
When to use FB2
- ebook publishing
- reader distribution
- digital libraries
- Structured XML book model.
FAQs
Why convert KRA to FB2?
Convert to FB2 when targeting reading environments or libraries that explicitly support FictionBook, especially for prose-heavy works, personal ebook collections, or regional distribution where FB2 remains common.
It is useful when semantic text structure matters more than elaborate layout.
For wider global interoperability, EPUB is usually the safer target.
What changes when converting KRA to FB2?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from medium in KRA to small in FB2. Quality profile changes from depends in KRA to reflowable in FB2. Compatibility profile changes from broad in KRA to moderate in FB2. Workflow profile changes from delivery in KRA to reading in FB2.
What should I review after converting KRA to FB2?
Check the exported file for Niche compared with EPUB and Kindle formats.; Less familiar in mainstream international ebook publishing..