PEF to PDF
Share a Pentax PEF frame on one PDF page for selection or review. Its 8-bit sRGB rendering does not retain the raw data or lens adjustments.
Format Comparison & Technical Specifications
| Specification | PEF | |
|---|---|---|
| MIME Type | - | application/pdf |
| Type | - | document container |
| Compression | - | Flate / JPEG / JBIG2 / CCITT |
| Standard Specification | - | ISO 32000-2:2020 |
| Magic Bytes Header | - | 25 50 44 46 (%PDF) |
Format Overview & Applications
A Pentax selection sheet can use the PDF for client comments, with the PEF retained for later lens or exposure decisions in the photo workflow.
Technical Specifications & Codec Breakdown
The PEF is decoded by LibRaw with adaptive demosaicing, camera white balance and camera matrix; the output is upright 8-bit sRGB before PDF generation.
OS & Browser Compatibility
Pentax Digital Camera Utility or a compatible raw processor can revisit PEF settings; the PDF page can be opened by a client without that camera software.
Useful info
Make lens and crop decisions in your preferred PEF workflow before exporting a client copy; those editor choices are not controls in the PDF.
Format Comparison & Technical Specifications
A 6016×4000 Pentax PEF client selection occupies 40.1×26.7 inches at 150 dpi.
Frequently Asked Questions
Are Pentax raw controls available after conversion?
The PDF contains the developed raster, so keep the PEF for camera and lens-specific adjustments.
What does AHD mean for the image?
It is the demosaicing mode selected in the LibRaw options before the pixels are written as 8-bit sRGB.
Can a Pentax editor continue work from this page?
Use the PEF for further camera and lens adjustments; the PDF is for review.