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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.
X3F at a glance
X3F
Sigma raw support is closely tied to the company's Foveon sensor story, giving X3F a reputation and workflow profile that differ from more mainstream Bayer-centric raw ecosystems.
Format comparison
| Feature | PDF | X3F |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1993 | 2002 |
| Inventor | Adobe | Sigma (Foveon) |
| Status | active | proprietary |
| Primary use cases |
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|
| 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 X3F.
- PDF is commonly used in document workflows.
When to use X3F
- Your target workflow expects X3F.
- Improve delivery compatibility with X3F.
- X3F is commonly used in image workflows.
FAQs
Why convert PDF to X3F?
Convert to X3F when preserving Sigma camera originals or maintaining a workflow built around Foveon raw processing.
It is useful for archival retention and non-destructive editing of Sigma captures.
What changes when converting PDF to X3F?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to X3F removes vector scaling.
What should I review after converting PDF to X3F?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.
Format resources
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