Multiple source images
Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. Availability is checked on this device using native WebCodecs.
PAM to HEIC converter
- In your browser
- No upload
- Private by design
What happens when you convert PAM to HEIC?
Encoding mode
Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
PAM
Source
PAM
Portable Arbitrary Map
Compression: UncompressedTransparency: YesMetadata: Header, Comments
Portable Arbitrary Map: simple uncompressed raster samples for image-processing pipelines.
Explore PAM format →HEIC
Target
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 →Is PAM → HEIC right for you?
Good choice when
- HEIC fits your delivery use: Device photography & image collections.
- You can choose the source image or part needed for delivery.
- You need a transparency-capable destination and will check its supported variant.
- Your receiving application supports the required HEIC variant.
Probably not when
- You require a complete collection, page set or multipart round trip.
- You assume format-level alpha support guarantees matching transparent edges.
- You need a guaranteed output file size or archival pixel equality. Encoder settings do not guarantee either.
- You require identical samples without a defined colour and precision policy.
PAM to HEIC conversion details
- Multiple source images
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. Availability is checked on this device using native WebCodecs.
- Transparency representation
- Transparency is replaced with white by default. Change the background in Advanced options. Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
- Encoding mode
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
- Sample precision & colour
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. Availability is checked on this device using native WebCodecs.
- Metadata & colour
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. Availability is checked on this device using native WebCodecs.
- Compression
- PAM: Uncompressed → HEIC: Lossy & lossless 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. 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.
- Transparency
- Transparency is replaced with white by default. Change the background in Advanced options. Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
- Animation
- Still image output. Animated files use only the first frame; animation is not preserved.
- Colour depth
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
- HDR
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. Availability is checked on this device using native WebCodecs.
- Multiple images
- Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
- 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?
Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. Availability is checked on this device using native WebCodecs.
Which compression mode will HEIC use?
Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained.
Are bit depth and colour values guaranteed to match?
Creates a lossy, opaque 8-bit sRGB HEIC using this device’s native encoder. Original P3/HDR precision is not retained. 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.