Fujifilm RAF to PAM: conversion guide

Source · Fujifilm RAF
Target · PAM

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What happens when you convert Fujifilm RAF to PAM?

RAW development

Fujifilm RAF needs camera- and file-aware development to produce a rendered PAM image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.

Transparency

The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.

Lossless sample storage

Netpbm stores these samples without compression. Reducing colour, thresholding or changing maxval can still lose information before storage; text and binary representations change the layout, not its image meaning. PAM can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.

Fujifilm RAF

Source

Fujifilm RAF

Fujifilm Raw

Compression: Depends on variantTransparency: NoMetadata: Capture metadata

Fujifilm camera raw images, with compression variants and sensor interpretation specific to the model.

Explore Fujifilm RAF format →
PAM

Target

PAM

Portable Arbitrary Map

Compression: UncompressedTransparency: YesMetadata: Header, Comments

Portable Arbitrary Map: simple uncompressed raster samples for image-processing pipelines.

Explore PAM format →

Is Fujifilm RAF → PAM right for you?

Good choice when

  • PAM fits your delivery use: Channel-aware image pipelines.
  • You need a developed image for a non-RAW application.
  • You need lossless storage of the rendered samples supported by PAM.
  • You can validate the destination’s sample precision and colour interpretation.
  • You need a PAM-compatible workflow that can hold transparency added in a separate edit.

Probably not when

  • You need the original sensor data and freedom to redevelop it.
  • You expect lossless encoding to restore lost details or editing structure.
  • You require identical samples without a defined colour and precision policy.
  • You expect automatic background removal or transparency.

Fujifilm RAF to PAM conversion details

RAW development
Fujifilm RAF needs camera- and file-aware development to produce a rendered PAM image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.
Transparency
The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.
Lossless sample storage
Netpbm stores these samples without compression. Reducing colour, thresholding or changing maxval can still lose information before storage; text and binary representations change the layout, not its image meaning. PAM can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.
Sample precision & colour
Source and target sample models can differ in precision, channel layout, colour space and transfer function. Lossless compression only preserves the samples actually encoded; a precision reduction or colour conversion can already change them. The future engine defines numeric mapping, orientation and colour conversion; canonical depth facts are listed below where available.
Metadata & colour
Format support does not guarantee that an export preserves metadata or colour profiles. Retention and colour handling depend on the future converter; its engine is not implemented yet.
Compression
Fujifilm RAF: Depends on variant → PAM: Uncompressed Fujifilm RAF: Fujifilm documents uncompressed, lossless-compressed and lossy-compressed RAW options where supported. Lossless and lossy modes are distinct, and applications must understand the particular compressed variant. The file extension does not declare which option was selected. PAM: Netpbm stores these samples without compression. Reducing colour, thresholding or changing maxval can still lose information before storage; text and binary representations change the layout, not its image meaning.
Transparency
Fujifilm RAF: No → PAM: Yes
Colour depth
Fujifilm RAF: Camera and recording mode → PAM: maxval up to 65535
Sensor data
Fujifilm RAF: Raw development required
Dimensions
Pixel dimensions, page geometry, rendering resolution, resizing and orientation need explicit converter policies. The future engine has not defined them yet.
Metadata
Fujifilm RAF: Capture metadata → PAM: Header, Comments. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.

Common questions

Will PAM still be an editable camera RAW?

Fujifilm RAF needs camera- and file-aware development to produce a rendered PAM image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.

Will the background become transparent?

The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.

Does lossless output mean an unchanged source?

Netpbm stores these samples without compression. Reducing colour, thresholding or changing maxval can still lose information before storage; text and binary representations change the layout, not its image meaning. PAM can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.

Are bit depth and colour values guaranteed to match?

Source and target sample models can differ in precision, channel layout, colour space and transfer function. Lossless compression only preserves the samples actually encoded; a precision reduction or colour conversion can already change them. The future engine defines numeric mapping, orientation and colour conversion; canonical depth facts are listed below where available.

Will metadata and colour profiles be retained?

Fujifilm RAF: Capture metadata → PAM: Header, Comments. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.