PEF to PDF Converter
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Supports: PEF
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Need help?PEF to PDF Converter
PEF is Pentax's proprietary RAW photo format — the unprocessed sensor data your Pentax or Ricoh camera writes alongside (or instead of) a JPEG. A PEF can't be embedded in a document or previewed by most PDF readers as-is, so this converter renders (demosaics) the RAW into a standard image and places it on a PDF page. The output is a flat, viewable picture inside a PDF — not a live RAW you can keep re-editing. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.
PEF Format at a Glance
| Property | Value |
|---|---|
| Full name | Pentax Electronic File (Pentax RAW) |
| Type | Proprietary camera RAW (sensor data, demosaiced on conversion) |
| Based on | TIFF / TIFF-EP container |
| Typical bit depth | 14-bit per channel on recent DSLRs (K-5, K-3, K-1 and later) |
| Created by | Pentax / Ricoh Imaging DSLRs and mirrorless bodies |
| Reference software | PENTAX Digital Camera Utility, Adobe Lightroom/Camera Raw |
| Open alternative | DNG (most Pentax bodies can record DNG instead) |
| Best for | Maximum tonal latitude before editing; not a sharing/print-ready format |
PDF Format at a Glance
| Property | Value |
|---|---|
| Full name | Portable Document Format |
| Standard | ISO 32000 (originally ISO 32000-1:2008; current ISO 32000-2:2020) |
| Created by | Adobe, first released 1993 |
| Payload here | A rendered raster image of the PEF, one photo per page |
| Bit depth in output | 8-bit RGB (standard image, not the original 14-bit RAW) |
| Opens in | Every PDF reader, browser, phone, and print shop |
| Best for | Sharing, printing, archiving, and emailing a photo anyone can open |
How to Convert PEF to PDF
- Upload Your PEF File: Drag and drop your
.peffiles onto the page or click "+ Add Files". Add several at once to build a multi-page PDF. - Choose Single PDF or Individual PDFs: Use the Combine setting to merge every photo into one PDF, or output one PDF per PEF.
- Set Page Layout and Image Placement: Pick A4 or another Paper size, Portrait or Landscape, a Margin preset, and Contained (whole photo fits) or Cover; tune the Quality Percentage slider to balance sharpness against file size.
- Convert and Download: Click Convert and download your PDF. No sign-up, no watermark.
Frequently Asked Questions
Does this preserve the RAW data inside the PDF?
No — and no converter can. A PDF holds a rendered raster image, so the PEF is demosaiced to a standard 8-bit picture and placed on the page. You keep the look at the moment of conversion, but you lose the 14-bit latitude that makes RAW worth shooting. Keep the original .pef if you might want to re-edit exposure or white balance later.
Why does the photo in the PDF look flatter or different from the camera screen?
The image on your camera's LCD is a small JPEG the camera bakes in using its contrast, saturation, and sharpness settings — those settings never apply to the RAW itself. Any RAW renderer (ours, Lightroom, or Pentax's own utility) starts from the neutral sensor data, so the first render can look flatter than the in-camera preview. Edit the PEF in a RAW developer first if you want a specific look before converting.
Should I convert from PEF or from DNG?
Either works and the result is the same kind of flat rendered image on a PDF page. DNG is Adobe's openly documented RAW (an extension of TIFF/EP), while PEF is Pentax's proprietary variant; both carry 14-bit data on recent bodies. If your camera already wrote DNG, use DNG to PDF instead — there's no quality advantage to either source for a PDF.
Can I put several Pentax photos into one PDF?
Yes. Upload multiple .pef files and leave the Combine setting on Single PDF to get one document with each photo on its own page. Switch to Individual PDFs if you'd rather get a separate file per shot.
How big can my PEF upload be?
Pentax RAW files commonly run 20-40 MB each depending on the body and resolution. The practical limit here is upload size and time over your connection, not your device — large batches simply take longer to send. If you only need a shareable image rather than a document, PEF to JPG produces a much smaller file.
Does the converter strip my EXIF and GPS metadata?
The output is a rendered image on a PDF page, so camera EXIF such as shutter, ISO, lens, and any GPS tags do not travel into the PDF the way they live in the original RAW. If you need that metadata, keep the source .pef; the PDF is meant for viewing and sharing the picture, not as a metadata archive.
Which paper size and placement should I pick for printing?
For a print shop, choose the paper size you'll print at, set Margin to suit the lab's bleed, and leave Image placement on Contained so the whole frame fits without cropping. In our testing, a 24-megapixel Pentax PEF placed Contained on A4 at the default quality renders the full frame sharply with no edge clipping; switch to Cover only when you want the photo to fill the page edge-to-edge.