## Photoshop Tags

Photoshop tags are found in PSD and PSB files, as well as inside embedded Photoshop information in many other file types (JPEG, TIFF, PDF, PNG to name a few).

Many Photoshop tags are marked as Unknown (indicated by a question mark after the tag name) because the information they provide is not very useful under normal circumstances. These unknown tags are not extracted unless the Unknown (-u) option is used. See http://www.adobe.com/devnet-apps/photoshop/fileformatashtml/ for the official specification

Photoshop path tags (Tag ID's 0x7d0 to 0xbb5) are not defined by default, but a config file included in the full ExifTool distribution (config_files/photoshop_paths.config) contains the tag definitions to allow access to this information.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0x03e8 | Photoshop2Info? | no |
> 0x03e9 | MacintoshPrintInfo? | no |
> 0x03ea | XMLData? | no |
> 0x03eb | Photoshop2ColorTable? | no |
> 0x03ed | ResolutionInfo | - | --> Photoshop Resolution Tags
> 0x03ee | AlphaChannelsNames | no |
> 0x03ef | DisplayInfo? | no |
> 0x03f0 | PStringCaption? | no |
> 0x03f1 | BorderInformation? | no |
> 0x03f2 | BackgroundColor? | no |
> 0x03f3 | PrintFlags? | no |
> 0x03f4 | BW_HalftoningInfo? | no |
> 0x03f5 | ColorHalftoningInfo? | no |
> 0x03f6 | DuotoneHalftoningInfo? | no |
> 0x03f7 | BW_TransferFunc? | no |
> 0x03f8 | ColorTransferFuncs? | no |
> 0x03f9 | DuotoneTransferFuncs? | no |
> 0x03fa | DuotoneImageInfo? | no |
> 0x03fb | EffectiveBW? | no |
> 0x03fc | ObsoletePhotoshopTag1? | no |
> 0x03fd | EPSOptions? | no |
> 0x03fe | QuickMaskInfo? | no |
> 0x03ff | ObsoletePhotoshopTag2? | no |
> 0x0400 | TargetLayerID? | no |
> 0x0401 | WorkingPath? | no |
> 0x0402 | LayersGroupInfo? | no |
> 0x0403 | ObsoletePhotoshopTag3? | no |
> 0x0404 | IPTCData | - | --> IPTC Tags
> 0x0405 | RawImageMode? | no |
> 0x0406 | JPEG_Quality | - | --> Photoshop JPEG_Quality Tags
> 0x0408 | GridGuidesInfo? | no |
> 0x0409 | PhotoshopBGRThumbnail | undef! | (this is a JPEG image, but in BGR format instead of RGB)
> 0x040a | CopyrightFlag | int8u | 0 = False 1 = True
> 0x040b | URL | string |
> 0x040c | PhotoshopThumbnail | undef! |
> 0x040d | GlobalAngle | int32u |
> 0x040e | ColorSamplersResource? | no |
> 0x040f | ICC_Profile | - | --> ICC_Profile Tags
> 0x0410 | Watermark? | no |
> 0x0411 | ICC_Untagged? | no |
> 0x0412 | EffectsVisible? | no |
> 0x0413 | SpotHalftone? | no |
> 0x0414 | IDsBaseValue? | no |
> 0x0415 | UnicodeAlphaNames? | no |
> 0x0416 | IndexedColorTableCount? | no |
> 0x0417 | TransparentIndex? | no |
> 0x0419 | GlobalAltitude | int32u |
> 0x041a | SliceInfo | - | --> Photoshop SliceInfo Tags
> 0x041b | WorkflowURL | no |
> 0x041c | JumpToXPEP? | no |
> 0x041d | AlphaIdentifiers? | no |
> 0x041e | URL_List | no+ |
> 0x0421 | VersionInfo | - | --> Photoshop VersionInfo Tags
> 0x0422 | EXIFInfo | - | --> EXIF Tags
> 0x0423 | ExifInfo2? | no |
> 0x0424 | XMP | - | --> XMP Tags
> 0x0425 | IPTCDigest | string! | (this tag indicates provides a way for XMP-aware applications to indicate that the XMP is synchronized with the IPTC. The MWG recommendation is to ignore the XMP if IPTCDigest exists and doesn't match the CurrentIPTCDigest. When writing, special values of "new" and "old" represent the digests of the IPTC from the edited and original files respectively, and are undefined if the IPTC does not exist in the respective file. Set this to "new" as an indication that the XMP is synchronized with the IPTC)
> 0x0426 | PrintScaleInfo | - | --> Photoshop PrintScaleInfo Tags
> 0x0428 | PixelInfo | - | --> Photoshop PixelInfo Tags
> 0x0429 | LayerComps? | no |
> 0x042a | AlternateDuotoneColors? | no |
> 0x042b | AlternateSpotColors? | no |
> 0x042d | LayerSelectionIDs? | no |
> 0x042e | HDRToningInfo? | no |
> 0x042f | PrintInfo? | no |
> 0x0430 | LayerGroupsEnabledID? | no |
> 0x0431 | ColorSamplersResource2? | no |
> 0x0432 | MeasurementScale? | no |
> 0x0433 | TimelineInfo? | no |
> 0x0434 | SheetDisclosure? | no |
> 0x0435 | DisplayInfo? | no |
> 0x0436 | OnionSkins? | no |
> 0x0438 | CountInfo? | no |
> 0x043a | PrintInfo2? | no |
> 0x043b | PrintStyle? | no |
> 0x043c | MacintoshNSPrintInfo? | no |
> 0x043d | WindowsDEVMODE? | no |
> 0x043e | AutoSaveFilePath? | no |
> 0x043f | AutoSaveFormat? | no |
> 0x0440 | PathSelectionState? | no |
> 0x0bb7 | ClippingPathName | no |
> 0x0bb8 | OriginPathInfo? | no |
> 0x1b58 | ImageReadyVariables? | no |
> 0x1b59 | ImageReadyDataSets? | no |
> 0x1f40 | LightroomWorkflow? | no |
> 0x2710 | PrintFlagsInfo? | no |

## Photoshop Resolution Tags

> Index2 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | XResolution | int32u |
> 2 | DisplayedUnitsX | int16u | 1 = inches 2 = cm
> 4 | YResolution | int32u |
> 6 | DisplayedUnitsY | int16u | 1 = inches 2 = cm

## Photoshop JPEG_Quality Tags

> Index2 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | PhotoshopQuality | int16s |
> 1 | PhotoshopFormat | no | 0 = Standard 1 = Optimized 257 = Progressive
> 2 | ProgressiveScans | no | 1 = 3 Scans 2 = 4 Scans 3 = 5 Scans

## Photoshop SliceInfo Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 20 | SlicesGroupName | no |
> 24 | NumSlices | no |

## Photoshop VersionInfo Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 4 | HasRealMergedData | no | 0 = No 1 = Yes
> 5 | WriterName | no |
> 9 | ReaderName | no |

## Photoshop PrintScaleInfo Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | PrintStyle | no | 0 = Centered 1 = Size to Fit 2 = User Defined
> 2 | PrintPosition | no |
> 10 | PrintScale | no |

## Photoshop PixelInfo Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 4 | PixelAspectRatio | no |

## Photoshop DocumentData Tags

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'Layr' | Layers | - | --> Photoshop Layers Tags
> 'Lr16' | Layers | - | --> Photoshop Layers Tags

## Photoshop Layers Tags

Tags extracted from Photoshop layer information.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> '_xbnd' | LayerBlendModes | no+ |
> 'colr' = Color 'dark' = Darken 'diff' = Difference 'diss' = Dissolve 'div ' = Color Dodge 'dkCl' = Darker Color 'fdiv' = Divide 'fsub' = Subtract 'hLit' = Hard Light 'hMix' = Hard Mix 'hue ' = Hue 'idiv' = Color Burn 'lLit' = Linear Light 'lbrn' = Linear Burn |  | 'lddg' = Linear Dodge 'lgCl' = Lighter Color 'lite' = Lighten 'lum ' = Luminosity 'mul ' = Multiply 'norm' = Normal 'over' = Overlay 'pLit' = Pin Light 'pass' = Pass Through 'sLit' = Soft Light 'sat ' = Saturation 'scrn' = Screen 'smud' = Exclusion 'vLit' = Vivid Light
> '_xcnt' | LayerCount | no |
> '_xnam' | LayerNames | no+ |
> '_xopc' | LayerOpacities | no+ |
> '_xrct' | LayerRectangles | no+ | (top left bottom right)
> 'luni' | LayerUnicodeNames | no+ |
> 'lyid' | LayerIDs? | no+ |
> 'shmd' | LayerModifyDates | no+ |

## Photoshop Header Tags

This information is found in the PSD file header.

> Index2 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 6 | NumChannels | no |
> 7 | ImageHeight | no |
> 9 | ImageWidth | no |
> 11 | BitDepth | no |
> 12 | ColorMode | no |
> 0 = Bitmap 1 = Grayscale 2 = Indexed 3 = RGB |  | 4 = CMYK 7 = Multichannel 8 = Duotone 9 = Lab

## Photoshop ImageData Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | Compression | no | 0 = Uncompressed 1 = RLE 2 = ZIP without prediction 3 = ZIP with prediction

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Jun 1, 2022

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