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Quarto Markdown at a glance
Quarto Markdown
QMD arrived with Quarto as a broader multi-language successor to R Markdown, extending the literate-programming and reproducible-publishing model beyond R-centric workflows into a more general scientific publishing system.
PGM at a glance
PGM
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 | Quarto Markdown | PGM |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2022 | 1988 |
| Inventor | Posit PBC (formerly RStudio) | Jef Poskanzer / Netpbm lineage |
| Status | active | active |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use Quarto Markdown
- Your source file is already in Quarto Markdown.
- Preserve source expectations before exporting to PGM.
- Quarto Markdown is commonly used in document workflows.
When to use PGM
- Your target workflow expects PGM.
- Improve delivery compatibility with PGM.
- PGM is commonly used in image workflows.
FAQs
Why convert Quarto Markdown to PGM?
Convert to PGM when you need a straightforward grayscale raster for scripting, research, or low-overhead image processing.
It is a good target for technical pipelines and intermediate data exchange.
What changes when converting Quarto Markdown to PGM?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting Quarto Markdown to PGM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.