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PDF at a glance
Adobe introduced PDF in the early 1990s as part of the Acrobat family. Adobe later handed the specification to ISO, and PDF 1.7 became ISO 32000-1 in 2008.
RAS at a glance
RAS
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | PDF | RAS |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1993 | 1987 |
| Inventor | Adobe | Sun Microsystems |
| Status | active | legacy |
| Primary use cases |
|
|
| Vector scaling | Supported | Not supported |
When to use each format
When to use PDF
- Your source file is already in PDF.
- Preserve source expectations before exporting to RAS.
- PDF is commonly used in document workflows.
When to use RAS
- Your target workflow expects RAS.
- Improve delivery compatibility with RAS.
- RAS is commonly used in image workflows.
FAQs
Why convert PDF to RAS?
Convert to RAS when preserving compatibility with historical Sun or Unix image assets.
In most modern contexts it serves as a migration and archive-recovery format.
What changes when converting PDF to RAS?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to RAS removes vector scaling.
What should I review after converting PDF to RAS?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.
Format resources
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Suggested links
Need more PDF tools? Check out PDFHQ.io.
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