Convert EXR images to PNM online with ImageHQ.
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Fast async jobs
No install required
Temporary files
Batch uploads
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.exr
pnm
/v1/convert
Submit files to /v1/convert, poll the job endpoint, then download outputs programmatically.
PNM does not support alpha transparency. Transparent EXR areas must be flattened onto a background color.
Animated, sequence, or multipage inputs need explicit frame/page handling.
Converting EXR to PNM decodes the source image and writes a PNM output. Use this route when PNM is a better fit for compatibility, file size, editing, or delivery.
Quality behavior depends on PNM compression: uncompressed.
Choose conversion targets based on PNM compression, transparency, animation, metadata, and compatibility requirements.
Known metadata support: standard attributes, custom attributes, multipart metadata.
Supported by ImageMagick, Netpbm, and technical imaging tools.
Academy Software Foundation - official_spec
OpenEXR - official_spec
Academy Software Foundation / OpenEXR - official_spec
ImageMagick - library_documentation
Netpbm - official_project_documentation
Netpbm - official_project_documentation