HEIC to PAM converter

Source · HEIC
Target · PAM

Drop a HEIC file here

or choose files from your device

  • Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
  • Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported.
  • HEIF container: libheif (LGPL); licences, source and relink files

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  • In your browser
  • No upload
  • Private by design

What happens when you convert HEIC to PAM?

Multiple source images

Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.

Animation becomes a still

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

HDR to SDR

Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.

Lossless sample storage

Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.

HEIC

Source

HEIC

High Efficiency Image File Format (HEVC)

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

HEVC-coded photographs in HEIF, with room for auxiliary images and capture metadata.

Explore HEIC 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 HEIC → PAM right for you?

Good choice when

  • PAM fits your delivery use: Channel-aware image pipelines.
  • You can choose the source image or part needed for delivery.
  • You want a still illustration from an animated source.
  • You need an SDR delivery copy and can review its tone mapping.

Probably not when

  • You require a complete collection, page set or multipart round trip.
  • 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.

HEIC to PAM conversion details

Multiple source images
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.
Animation becomes a still
Still image output. Animated files use only the first frame; animation is not preserved.
HDR to SDR
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.
Transparency representation
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported.
Lossless sample storage
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.
Sample precision & colour
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.
Metadata & colour
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.
Compression
HEIC: Lossy & lossless → PAM: Uncompressed HEIC: HEIC commonly uses lossy HEVC; HEVC also has lossless coding tools. Actual quality, bit depth and chroma depend on the encoded profile and settings, not on the .heic extension. 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
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported.
Animation
Still image output. Animated files use only the first frame; animation is not preserved.
Colour depth
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported.
HDR
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.
Multiple images
Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported.
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 every source image be exported?

Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.

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?

Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.

Are bit depth and colour values guaranteed to match?

Primary SDR still image only. sRGB/Display P3 and supported 8/10-bit HEVC render to 8-bit sRGB. HDR, auxiliary alpha and other HEIF codecs are rejected. Thumbnails, depth, gain maps and Live Photo motion are not exported. Availability is checked on this device using native WebCodecs.

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.