Merge PEF to PDF

Combine multiple PEF (Pentax RAW) photos into a single PDF document with layout and compression control.

Initializing... drag & drop files here

Supports: PEF

OptionsAdvanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Combine?
Margin
Paper size
Paper size
Page layout
Image placement
Image alignment
Image Compression
Quality Percentage
1
75
100
Image Transparency

How to Merge PEF Photos to PDF
  1. Upload your PEF files — Click "+ Add Files" or drag and drop multiple Pentax RAW photos.
  2. Arrange page order — Drag and drop to set the order of pages in your PDF.
  3. Set page layout (optional) — Under "Page layout," choose "Portrait" or "Landscape." Under "Paper size," select a page size preset.
  4. Set image placement (optional) — Under "Image placement," choose "Cover" (fill page) or "Contained" (fit within margins). Under "Image alignment," choose "Top," "Center," or "Bottom."
  5. Set margin (optional) — Under "Margin," choose from "No margin (0")," "Narrow (0.5")," "Moderate (0.75×1")," "Normal (1")," or "Large (2×1")."
  6. Merge and download — Click "Merge" and download your combined PDF.

Why Merge PEF to PDF?

PEF is Pentax's RAW photo format used by K-series and 645 medium format cameras. PEF files store full sensor data for maximum editing flexibility, but require Pentax Digital Camera Utility, Lightroom, Darktable, or RawTherapee to open. Merging PEF files to PDF creates a universally viewable document — ideal for client proofs, contact sheets, or archiving your Pentax photos.

Each PEF file is rendered and placed as one page in the combined PDF.

PEF to PDF Use Cases

Scenario Layout Placement Compression
Client proofs Portrait Contained Ebook
Landscape portfolio Landscape Cover Prepress
Contact sheet Portrait Contained Screen
Photo archive Portrait Contained Default

Frequently Asked Questions

What is PEF format?

PEF (Pentax Electronic File) is Pentax's RAW photo format. It stores unprocessed sensor data with full color depth, allowing complete control over white balance, exposure, and sharpness in post-processing.

Can I control PDF quality?

Yes. Under "Image Compression," set "Image Quality (%)" for embedded images. Under "Compression Type," choose Screen (smallest), Ebook, Default, Prepress, or Printer (highest quality).

Can I create individual PDFs instead of one combined file?

Yes. Under "Combine?," select "Individual PDFs" to create one PDF per PEF file.

What page sizes are available?

Under "Paper size," choose from standard presets including Letter, A4, Legal, and more.

Can I set image alignment?

Yes. Under "Image alignment," choose "Top," "Center," or "Bottom" to control vertical positioning within the page.

Rate Merge PEF to PDF Tool

Rating: 4.8 / 5 - 58 reviews