Convert PSD to PGM

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What happens when you convert PSD to PGM?

Rendered composition

Uses the saved merged RGB/grayscale image. Layers are not recomposited; 16-bit, CMYK and PSB are not supported.

Grayscale output

Colour is converted to grayscale using linear-sRGB luminance and the sRGB transfer curve. Colour channels and transparency are not retained.

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. PGM 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.

PSD

Source

PSD

Adobe Photoshop Document

Compression: LosslessTransparency: YesMetadata: Image resources, ICC, XMP, Exif

A Photoshop working document carrying image channels, layers, masks and document resources.

Explore PSD format →

PGM

Target

PGM

Portable Graymap

Compression: UncompressedTransparency: NoMetadata: Header, Comments

Portable Graymap: simple uncompressed raster samples for image-processing pipelines.

Explore PGM format →

Is PSD → PGM right for you?

Good choice when

PGM fits your delivery use: Grayscale images & masks.
You need a rendered delivery copy of the composition.
Your processing pipeline explicitly needs grayscale samples.
You need an SDR delivery copy and can review its tone mapping.

Probably not when

You must keep masks, layer effects or editable text.
Colour distinctions carry information you need to retain.
You need the original HDR range for relighting or grading.
You need cutouts or translucent edges for compositing.

Conversion considerations

A rendered PSD export carries a composite image, not the original editable layers, masks, text and effects. Layer visibility, blending and renderer fidelity depend on the future engine. Even TIFF, EXR or PDF output does not promise a Photoshop editing round trip; retain the PSD working original.
PGM stores one grayscale sample per pixel, with no colour channels or alpha. Colour input becomes gray; brightness depends on the colour transform and transfer-function handling chosen by the future engine. Higher maxval can retain more gray levels, but does not retain chromatic information.
If HDR source content is exported through an SDR representation, it needs a display rendering. Values outside the output range require tone mapping, scaling or clipping; brightness relationships can change. Tone mapping, exposure and colour handling depend on the future engine. Renaming or lossless compression cannot preserve out-of-range values.
If PSD contains transparency, PGM cannot retain it as transparent output areas. Those pixels need compositing against an opaque background. Matte colour, alpha interpretation and edge treatment are future engine decisions; no background colour is selected yet.

PSD to PGM conversion details

Rendered composition: Uses the saved merged RGB/grayscale image. Layers are not recomposited; 16-bit, CMYK and PSB are not supported.
Grayscale output: Colour is converted to grayscale using linear-sRGB luminance and the sRGB transfer curve. Colour channels and transparency are not retained.
HDR to SDR: HDR is rendered to SDR using exposure and Reinhard tone mapping.
Opaque output: Transparency is replaced with white by default. Change the background in Advanced options.
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. PGM 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: PSD: Lossless → PGM: Uncompressed PSD: PSD channel compression is lossless, but a document may contain previously lossy source assets. Composite rendering and layer editing are different capabilities; this page does not claim portable animation playback. PGM: 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.
Colour depth: PSD: 8 / 16 / 32 bits/channel → PGM: maxval up to 65535
HDR: PSD: 32-bit workflows
Layers: PSD: Layers & masks
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 editable PSD layers survive?

Uses the saved merged RGB/grayscale image. Layers are not recomposited; 16-bit, CMYK and PSB are not supported.

Will PGM keep the source colours?

Colour is converted to grayscale using linear-sRGB luminance and the sRGB transfer curve. Colour channels and transparency are not retained.

How will HDR brightness be mapped?

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

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?