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ERF at a glance
ERF
Convert to ERF when preserving or restoring Epson-origin raw captures in an archive or compatibility workflow.
In most contemporary pipelines, it is a legacy source format to retain or migrate.
LWP at a glance
LWP
Convert to LWP when maintaining compatibility with Lotus-era document archives or when an inherited repository still depends on Word Pro files.
In most modern contexts the practical task is to open, preserve, or migrate LWP documents into DOCX, ODT, or PDF.
Use LWP only when the surrounding workflow truly still depends on it.
Format comparison
| Feature | ERF | LWP |
|---|---|---|
| File type | Image | Document |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | raw | depends |
| File size characteristics | large | medium |
| Compatibility | limited | broad |
| Editability | high | moderate |
| Created year | 2004 | 1996 |
| Inventor | Epson | Lotus Development Corporation / IBM |
| Status | proprietary | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | strong |
| Metadata handling | rich | moderate |
| Delivery profile | limited | strong |
| Workflow fit | source | exchange |
| Vector scaling | Not supported | Not supported |
When to use each format
When to use ERF
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage image data for later interpretation.
When to use LWP
- authoring
- review and collaboration
- distribution
- Important in office-suite history.
FAQs
Why convert ERF to LWP?
Convert to LWP when maintaining compatibility with Lotus-era document archives or when an inherited repository still depends on Word Pro files.
In most modern contexts the practical task is to open, preserve, or migrate LWP documents into DOCX, ODT, or PDF.
Use LWP only when the surrounding workflow truly still depends on it.
What changes when converting ERF to LWP?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from large in ERF to medium in LWP. Quality profile changes from raw in ERF to depends in LWP. Editability profile changes from high in ERF to moderate in LWP. Compatibility profile changes from limited in ERF to broad in LWP. Metadata profile changes from rich in ERF to moderate in LWP. Delivery profile changes from limited in ERF to strong in LWP. Workflow profile changes from source in ERF to exchange in LWP.
What should I review after converting ERF to LWP?
Check the exported file for Largely obsolete as a current editable target.; Less familiar than other legacy office formats to modern users..