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TIFF to EXR: conversion guide

Source · TIFF
Target · EXR

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OpenEXR needs a dedicated floating-point pipeline that is not implemented yet.

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What happens when you convert TIFF to EXR?

Multiple source images

TIFF can contain multiple image representations with different roles. These are not automatically a timed animation. Selecting an image, preserving a collection or creating several outputs needs explicit engine support; neither a first-image choice nor an all-images export is implemented.

HDR display encoding

The source can carry HDR information and EXR has HDR-capable variants. Working radiometric values and display-referred HDR are different representations. Range, primaries, transfer function and signalling must be mapped explicitly; the future engine may instead produce SDR. HDR preservation is not promised by format support.

Encoding mode

EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation. EXR permits different encoding modes or container representations. Its format name alone does not promise lossless output, a quality setting or a size reduction. The future engine must choose a supported codec and sample representation; inspect the target’s compression notes below.

TIFF

Source

TIFF

Tagged Image File Format

Compression: Depends on variantTransparency: YesMetadata: TIFF tags, Exif, ICC

Tagged raster storage for scanning and image interchange. Compression, sample types and image count depend on the TIFF variant.

Explore TIFF format →
EXR

Target

EXR

OpenEXR

Compression: Lossy & losslessTransparency: YesMetadata: Typed header attributes, Chromaticities

HDR raster data for rendering and compositing, with named channels and lossless or lossy codecs.

Explore EXR format →

Is TIFF → EXR right for you?

Good choice when

  • EXR fits your delivery use: Render passes & HDR compositing.
  • You can choose the source image or part needed for delivery.
  • You need HDR-capable delivery and can validate its encoding and colour signalling.
  • You need a transparency-capable destination and will check its supported variant.

Probably not when

  • You require a complete collection, page set or multipart round trip.
  • You require guaranteed scene-linear values or HDR appearance.
  • You assume format-level alpha support guarantees matching transparent edges.
  • You need a guaranteed quality or file size before encoder settings exist.

TIFF to EXR conversion details

Multiple source images
TIFF can contain multiple image representations with different roles. These are not automatically a timed animation. Selecting an image, preserving a collection or creating several outputs needs explicit engine support; neither a first-image choice nor an all-images export is implemented.
HDR display encoding
The source can carry HDR information and EXR has HDR-capable variants. Working radiometric values and display-referred HDR are different representations. Range, primaries, transfer function and signalling must be mapped explicitly; the future engine may instead produce SDR. HDR preservation is not promised by format support.
Transparency representation
Both format profiles allow transparency, but this does not promise identical alpha representation. Source variants, target channel precision and alpha interpretation matter. The future encoder must explicitly carry or convert transparency; merely choosing EXR guarantees no alpha transfer.
Encoding mode
EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation. EXR permits different encoding modes or container representations. Its format name alone does not promise lossless output, a quality setting or a size reduction. The future engine must choose a supported codec and sample representation; inspect the target’s compression notes below.
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
TIFF: Depends on variant → EXR: Lossy & lossless TIFF: TIFF is not intrinsically lossless or uncompressed. Read the Compression, BitsPerSample and SampleFormat tags; decoder support varies across schemes. EXR: EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation.
Transparency
TIFF: Yes → EXR: Yes
Colour depth
TIFF: Tagged sample types → EXR: HALF 16 / FLOAT 32 / UINT 32
HDR
EXR: Floating-point working values
Multiple images
TIFF: Image directories → EXR: Multipart
Dimensions
Pixel dimensions, page geometry, rendering resolution, resizing and orientation need explicit converter policies. The future engine has not defined them yet.
Metadata
TIFF: TIFF tags, Exif, ICC → EXR: Typed header attributes, Chromaticities. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.

Common questions

Will every source image be exported?

TIFF can contain multiple image representations with different roles. These are not automatically a timed animation. Selecting an image, preserving a collection or creating several outputs needs explicit engine support; neither a first-image choice nor an all-images export is implemented.

Will HDR automatically survive in EXR?

The source can carry HDR information and EXR has HDR-capable variants. Working radiometric values and display-referred HDR are different representations. Range, primaries, transfer function and signalling must be mapped explicitly; the future engine may instead produce SDR. HDR preservation is not promised by format support.

Which compression mode will EXR use?

EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation. EXR permits different encoding modes or container representations. Its format name alone does not promise lossless output, a quality setting or a size reduction. The future engine must choose a supported codec and sample representation; inspect the target’s compression notes below.

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?

TIFF: TIFF tags, Exif, ICC → EXR: Typed header attributes, Chromaticities. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.

Explore related TIFF and EXR conversions.

Other targets for TIFF

TIFF→PNG
TIFF → PNG
TIFF→JPEG
TIFF → JPEG

Other sources for EXR

HDR→EXR
HDR → EXR
PSD→EXR
PSD → EXRWith caveat
AVIF→EXR
AVIF → EXR