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PGM in het kort
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.
CDR in het kort
CDR
CorelDRAW was developed by Corel engineers Michel Bouillan and Pat Beirne in 1987 to bundle with Corel's desktop publishing systems. The inclusion of TrueType support in Windows 3.1 transformed CorelDRAW into a serious illustration program.
Formaatvergelijking
| Kenmerk | PGM | CDR |
|---|---|---|
| File type | Image | Vector |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1988 | 1989 |
| Inventor | Jef Poskanzer / Netpbm lineage | Corel Corporation |
| Status | active | active |
| Transparency | Niet ondersteund | Niet ondersteund |
| Animation | Niet ondersteund | Niet ondersteund |
| Primary use cases |
|
|
| Layer support | Niet ondersteund | Niet ondersteund |
| Vector scaling | Niet ondersteund | Ondersteund |
Wanneer je elk formaat gebruikt
When to use PGM
- Your source file is already in PGM.
- Preserve source expectations before exporting to CDR.
- PGM is commonly used in image workflows.
When to use CDR
- Your target workflow expects CDR.
- Improve delivery compatibility with CDR.
- CDR is commonly used in vector workflows.
Veelgestelde vragen
Why convert PGM to CDR?
Convert to CDR when the recipient will continue editing or producing the artwork in CorelDRAW-based environments, especially in print, signage, or fabrication-adjacent workflows.
It is useful when native Corel compatibility is the priority.
For more neutral exchange, PDF, SVG, or EPS are usually easier handoff formats.
What changes when converting PGM to CDR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to CDR adds vector scaling.
What should I review after converting PGM to CDR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.