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PS at a glance
PS
Adobe's PostScript technology was central to the desktop publishing revolution, and the language became tightly associated with printers, imagesetters, and prepress workflows.
PAM at a glance
PAM
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 | PS | PAM |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
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| Created year | 1984 | 2000 |
| Inventor | Adobe | Jef Poskanzer / Netpbm lineage |
| Status | active | active |
| Primary use cases |
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| Vector scaling | Supported | Not supported |
When to use each format
When to use PS
- Your source file is already in PS.
- Preserve source expectations before exporting to PAM.
- PS is commonly used in document workflows.
When to use PAM
- Your target workflow expects PAM.
- Improve delivery compatibility with PAM.
- PAM is commonly used in image workflows.
FAQs
Why convert PS to PAM?
Convert to PAM when using Unix-style image tools or scripted workflows that benefit from a simple, explicit raster container with more flexibility than PBM/PGM/PPM.
It is useful as an intermediate technical format.
What changes when converting PS to PAM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to PAM removes vector scaling.
What should I review after converting PS to PAM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.