ORF to PDF Converter
Initializing... drag & drop files here
Supports: ORF
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?ORF to PDF Converter
ORF is the Olympus Raw Format — the proprietary RAW file your Olympus or OM System camera writes straight off the sensor. A RAW file is not a finished picture, so to put one into a PDF the converter has to demosaic and render it to a standard image first, then place that image on a PDF page. The result is a flat, shareable document you can email, print, or attach to a report — useful when the person on the other end needs to see the shot, not re-edit it. If you need the original exposure latitude back, keep the ORF; the PDF is a rendered copy, not an editable negative.
ORF Format at a Glance
| Property | Value |
|---|---|
| Full name | Olympus Raw Format (RAW) |
| Vendor | Olympus / OM System (imaging arm became OM Digital Solutions in Oct 2020) |
| Underlying structure | TIFF-based; structure consistent with the TIFF/EP standard |
| File signature | Custom magic MMOR, IIRO, or IIRS instead of standard TIFF magic |
| Bit depth | 12 bits per channel or more (vs 8-bit for JPEG) |
| Lossy / lossless | Sensor data preserved; compression is lossless or uncompressed depending on body |
| Native OS support | Per-model; Olympus and OM SYSTEM bodies are on Apple's macOS RAW list, but new cameras are usually added months after release |
| Best for | Holding maximum editing latitude before processing |
PDF Format at a Glance
| Property | Value |
|---|---|
| Full name | Portable Document Format |
| Standard | ISO 32000 (PDF 2.0 is ISO 32000-2) |
| Origin | Created by Adobe in 1993; an open ISO standard since 2008 |
| Content | Fixed-layout pages; a rendered image is embedded as a raster object |
| Bit depth carried | Whatever the embedded raster holds — typically 8-bit per channel after rendering |
| Native support | Opens in every major browser, OS preview app, and free reader |
| Best for | Sharing, printing, and archiving a layout that looks identical everywhere |
How to Convert ORF to PDF
- Upload Your ORF File: Drag and drop your
.orffiles onto the page or click "+ Add Files". Add several at once to batch them. - Pick Single PDF or Individual PDFs: Use the Combine control to merge every photo into one PDF, or output one PDF per ORF.
- Set Paper Size, Layout, and Placement: Choose A4 or another Paper size, Portrait or Landscape, and Contained (whole photo fits inside the margins) or Cover (photo fills the page). Image Quality defaults to 75 — raise it for print, lower it for a smaller file.
- Convert and Download: Click Convert and save the PDF. No sign-up, no watermark.
Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — never shared or made public.
Need the photo as an image instead of a document? Use ORF to JPG. Want several photos stacked into one PDF with custom ordering? Merge images to PDF accepts ORF directly.
Frequently Asked Questions
Why can't I just print or attach the ORF directly?
ORF is RAW sensor data, not a rendered picture. Most email clients, document apps, and printers can't display it, and even on a Mac, native support is added per-camera and often lags a new body's release. Rendering to PDF (or JPG) produces a file that opens everywhere.
Does converting ORF to PDF lose any quality?
It loses editing quality, not visible quality. The 12-bit-or-more RAW data gets demosaiced and rendered down to a standard 8-bit-per-channel image, which discards the highlight-recovery and white-balance latitude that makes RAW worth shooting. The picture itself looks the same at normal viewing sizes; you just can't re-develop it from the PDF.
What paper size and orientation should I use?
For documents people will read on screen or print on a home printer, A4 (or Letter) Portrait is the safe default. If your photo is wider than it is tall, switch Page layout to Landscape so it isn't shrunk to fit. Choose Contained to keep the whole frame visible inside the margins, or Cover to make the image fill the page edge to edge.
Should I convert to DNG instead of PDF to archive my RAW files?
Different jobs. DNG is still a RAW negative — it carries the same sensor data as the ORF in an open Adobe container, so it stays fully editable and is the better choice for long-term archiving. PDF is a finished, flat document for sharing and printing. Use PDF when someone needs to view the image, not re-process it.
Can I put several ORF photos into one PDF?
Yes. Upload all of them and set the Combine control to Single PDF to get one multi-page document, or Individual PDFs to get a separate file per photo. For finer control over page order and layout, Merge images to PDF takes ORF files as input.
How do I keep the PDF small enough to email?
Lower the Image Quality slider (it defaults to 75) and, if you don't need print resolution, leave Paper size at A4 rather than a larger sheet. In our testing, a single 20-megapixel ORF rendered to A4 at quality 75 produced a PDF in the low single-digit megabytes — small enough for any mainstream email attachment limit.
Is the converted PDF searchable or does it contain text?
No. The page holds a rendered photo, so there's no selectable or searchable text — it behaves like a scanned image. If you need text on the page, add it in a PDF editor after converting.