Merge MOS to PDF

Combine multiple MOS (Leaf/Mamiya medium format RAW) photos into a single PDF with layout and compression control.

Initializing... drag & drop files here

Supports: MOS

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 MOS Photos to PDF
  1. Upload your MOS files — Click "+ Add Files" or drag and drop multiple Leaf/Mamiya 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 MOS to PDF?

MOS is the RAW image format from Leaf Aptus and Mamiya medium format digital cameras — professional-grade equipment used in commercial photography, fashion, and fine art. MOS files use lossless JPEG compression with a TIFF-like structure, but require Adobe Lightroom, Capture One, RawTherapee, or Darktable to open. Merging MOS files to PDF creates a shareable document from your medium format photos.

Each MOS file is rendered and placed as one page in the combined PDF — ideal for client proofs, commercial portfolios, or archiving medium format work.

MOS to PDF Use Cases

Scenario Layout Placement Compression
Commercial proofs Portrait Contained Ebook
Fashion portfolio Portrait Cover Prepress
Fine art prints Portrait Cover Printer
Studio archive Portrait Contained Default

Frequently Asked Questions

What is MOS format?

MOS is the RAW image format from Leaf Aptus and Mamiya medium format cameras. It stores unprocessed sensor data with lossless JPEG compression in a TIFF-like structure, capturing maximum detail from medium format sensors.

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 MOS file.

What page sizes are available?

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

Can I remove transparency?

Yes. Under "Image Transparency," choose "Removed" to replace transparent areas with a white background.

Rate Merge MOS to PDF Tool

Rating: 4.8 / 5 - 40 reviews