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LWP at a glance
LWP
Lotus office formats carry the history of a once-major office software ecosystem that later lost mainstream dominance to Microsoft Office.
PGM Raw at a glance
PGM Raw
The raw PGM branch reflects the practical evolution of Netpbm-style tool formats: keep the tiny header and easy parsing, but move the pixel raster into a binary form that is much more usable for real data sizes.
Format comparison
| Feature | LWP | PGM Raw |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
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| Created year | 1996 | 1988 |
| Inventor | Lotus Development Corporation / IBM | Jef Poskanzer |
| Status | active | active |
| Primary use cases |
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| Vector scaling | Not supported | Not supported |
When to use each format
When to use LWP
- Your source file is already in LWP.
- Preserve source expectations before exporting to PGM Raw.
- LWP is commonly used in document workflows.
When to use PGM Raw
- Your target workflow expects PGM Raw.
- Improve delivery compatibility with PGM Raw.
- PGM Raw is commonly used in image workflows.
FAQs
Why convert LWP to PGM Raw?
Convert to PGM raw when a pipeline needs direct grayscale raster data for vision research, microscopy or scientific-image preprocessing, algorithm tests, or command-line tooling where minimal format overhead matters.
It is particularly useful as an intermediate format between automated processing steps.
What changes when converting LWP to PGM Raw?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting LWP to PGM Raw?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.