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PFM at a glance
PFM
Convert to PFM when high-precision floating-point image data must survive for rendering, HDR processing, or technical analysis.
It is useful as a working format in graphics and research pipelines.
RST at a glance
RST
Convert to RST when the content is headed into Sphinx or another documentation system that benefits from directive-rich plain text.
It is well suited to API docs, developer manuals, internal technical references, and documentation that needs cross-references, notes, code blocks, and publish-time transformations.
Use it when documentation semantics are more important than office-style page layout.
Format comparison
| Feature | PFM | RST |
|---|---|---|
| File type | Image | Document |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | medium | medium |
| Compatibility | broad | broad |
| Editability | moderate | moderate |
| Created year | 1995 | 2001 |
| Inventor | Paul Debevec | Docutils project / David Goodger lineage |
| Status | active | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | strong |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | delivery | exchange |
| Vector scaling | ❌ | ❌ |
When to use each format
When to use PFM
- capture ingest
- editing
- web or print delivery
- Useful for technical sample interchange and tooling.
When to use RST
- authoring
- review and collaboration
- distribution
- Strong structural semantics for documentation.
FAQs
Why convert PFM to RST?
Convert to RST when the content is headed into Sphinx or another documentation system that benefits from directive-rich plain text.
It is well suited to API docs, developer manuals, internal technical references, and documentation that needs cross-references, notes, code blocks, and publish-time transformations.
Use it when documentation semantics are more important than office-style page layout.
What changes when converting PFM to RST?
This conversion changes how the format behaves in downstream tools and delivery environments.
Archival profile changes from moderate in PFM to strong in RST. Workflow profile changes from delivery in PFM to exchange in RST.
What should I review after converting PFM to RST?
Check the exported file for It has a steeper learning curve than Markdown for casual authors.; Outside technical-documentation communities, Markdown often wins on familiarity..