Convert JPEG XL to PAM

Source · JPEG XL
Target · PAM

Drop a JPEG XL file here

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  • Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
  • Still image output. Animated files use only the first frame; animation is not preserved.

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  • No upload
  • Private by design

What happens when you convert JPEG XL to PAM?

Animation becomes a still

Still image output. Animated files use only the first frame; animation is not preserved.

HDR to SDR

HDR is rendered to SDR using exposure and Reinhard tone mapping.

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.

JPEG XL

Source

JPEG XL

JPEG XL Image Coding System

Compression: Lossy & losslessTransparency: YesMetadata: Exif, XMP, ICC, JUMBF

A JPEG-family image system for lossy and lossless pictures, high precision, alpha and animation.

Explore JPEG XL 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 JPEG XL → PAM right for you?

Good choice when

  • PAM fits your delivery use: Channel-aware image pipelines.
  • You want a still illustration from an animated source.
  • You need an SDR delivery copy and can review its tone mapping.
  • You need a transparency-capable destination and will check its supported variant.

Probably not when

  • Motion, frame timing or loop behaviour must survive.
  • You need the original HDR range for relighting or grading.
  • You assume format-level alpha support guarantees matching transparent edges.
  • You expect lossless encoding to restore lost details or editing structure.

JPEG XL to PAM conversion details

Animation becomes a still
Still image output. Animated files use only the first frame; animation is not preserved.
HDR to SDR
HDR is rendered to SDR using exposure and Reinhard tone mapping.
Transparency representation
The implemented target supports alpha. Display-pixel processing can round translucent samples; archival sample equality is not promised.
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
Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Metadata & colour
Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Compression
JPEG XL: Lossy & lossless → PAM: Uncompressed JPEG XL: Lossless pixels, lossy pixels and reversible recompression of an eligible JPEG bitstream are separate modes. Exact JPEG reconstruction requires its reconstruction data, not just matching rendered pixels. 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
Transparency is replaced with white by default. Change the background in Advanced options.
Animation
Still image output. Animated files use only the first frame; animation is not preserved.
Colour depth
JPEG XL: High-bit-depth samples → PAM: maxval up to 65535
HDR
JPEG XL: Supported
Layers
JPEG XL: Frame blending; not PSD editing
Dimensions
Rendered image dimensions are retained within the converter limits; this tool does not offer resizing. Orientation handling depends on the source decoder.
Metadata
Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Common questions

Will the output keep animation?

Still image output. Animated files use only the first frame; animation is not preserved.

How will HDR brightness be mapped?

HDR is rendered to SDR using exposure and Reinhard tone mapping.

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?

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Will metadata and colour profiles be retained?

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.