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Xfig at a glance
Xfig
Xfig began in 1985 and accumulated decades of maintenance and export tooling, which made the .fig format a durable bridge between interactive diagram editing on Unix systems and downstream conversion to PostScript, PDF, and other outputs.
PBM at a glance
PBM
PBM, PGM, PPM, PNM, and later PAM come from the tool-centric tradition of keeping image interchange formats easy to parse, script, and transform.
Format comparison
| Feature | Xfig | PBM |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
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| MIME type |
|
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| Created year | 1985 | 1988 |
| Inventor | Supoj Sutanthavibul | Jef Poskanzer / Netpbm lineage |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
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| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Not supported |
When to use each format
When to use Xfig
- Your source file is already in Xfig.
- Preserve source expectations before exporting to PBM.
- Xfig is commonly used in vector workflows.
When to use PBM
- Your target workflow expects PBM.
- Improve delivery compatibility with PBM.
- PBM is commonly used in image workflows.
FAQs
Why convert Xfig to PBM?
Convert to PBM when you need a bare-bones monochrome raster for command-line tooling, research, or low-level graphics processing.
It is useful for simple binary image exchange and intermediate processing.
What changes when converting Xfig to PBM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PBM removes vector scaling.
What should I review after converting Xfig to PBM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.