Lists all PSD tag identifiers. See "Photoshop CS File Formats Specification" available in Adobe Photoshop SDK for more details.

Values:

IGMDTAG_ID_PSD_FORMAT	PSD metadata format identifier.
IGMDTAG_ID_PSD_SIGNATURE	File type identifier.
IGMDTAG_ID_PSD_VERSION	Version number.
IGMDTAG_ID_PSD_ROWS	The height of the image in pixels.
IGMDTAG_ID_PSD_COLS	The width of the image in pixels.
IGMDTAG_ID_PSD_DEPTH	The number of bits per channel.
IGMDTAG_ID_PSD_MODE	Color mode.
IGMDTAG_ID_PSD_MODE_LEN	Color mode data length.
IGMDTAG_ID_PSD_COMPRESSION	Image data compression.
IGMDTAG_ID_PSD_FILE_HDR	File header.
IGMDTAG_ID_PSD_COLOR_DATA	Color data.
IGMDTAG_ID_PSD_RESOURCE	Photoshop resources.
IGMDTAG_ID_PSD_LAYER	Layers data.
IGMDTAG_ID_PSD_GLOBAL_MASK	Extra layers data.
IGMDTAG_ID_PSD_LAYER_RECT	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_LAYER_NUMBER_CHANNELS	Number of channels in the layer.
IGMDTAG_ID_PSD_LAYER_BLEND_MODE_KEY	Blend mode key.
IGMDTAG_ID_PSD_LAYER_OPACITY	Layer opacity (0 = transparent ... 255 = opaque).
IGMDTAG_ID_PSD_LAYER_CLIPPING	Layer clipping (0 = base, 1 = non-base).
IGMDTAG_ID_PSD_LAYER_FLAGS	Flags: bit 0 = transparency protected; bit 1 = visible; bit 2 = obsolete; bit 3 = 1 for Photoshop 5.0 and later, tells if bit 4 has useful information; bit 4 = pixel data irrelevant to appearance of document.
IGMDTAG_ID_PSD_LAYER_MASK_DATA	Mask data.
IGMDTAG_ID_PSD_LAYER_ASCII_NAME	Layer name as ASCII string.
IGMDTAG_ID_PSD_LAYER_CHANNEL_LEN_INFO	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_LAYER_BLENDING_RANGES_DATA	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_NUM_LAYERS	Number of layers.
IGMDTAG_ID_PSD_GLOBAL_MASK_INFO	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_ADJUSTMENT_LAYER_INFO	Adjustment info.
IGMDTAG_ID_PSD_LAYER_UNICODE_NAME	Layer name as Unicode string.
IGMDTAG_ID_PSD_LAYER_ID	Layer ID.
IGMDTAG_ID_PSD_EFFECT_LAYER_INFO	Effect Layer info.
IGMDTAG_ID_PSD_EFFECT_LAYER_COMMON_STATE_INFO	Effects layer, common state info.
IGMDTAG_ID_PSD_EFFECT_LAYER_SHADOW_INFO	Effects layer, drop shadow and inner shadow info.
IGMDTAG_ID_PSD_EFFECT_LAYER_GLOW_INFO	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_EFFECT_LAYER_BEVEL_INFO	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_TOOL_TYPE_INFO	Type Tool Info.
IGMDTAG_ID_PSD_PATTERN	Pattern fill setting.
IGMDTAG_ID_PSD_ANNOTATIONS	Annotations.
IGMDTAG_ID_PSD_BLEND_CLIPPING_ELEMENTS	Blend clipping elements.
IGMDTAG_ID_PSD_BLEND_INTERIOR_ELEMENTS	Blend interior elements.
IGMDTAG_ID_PSD_KNOCKOUT_SETTING	Knockout setting.
IGMDTAG_ID_PSD_PROTECTED_SETTING	Protected setting.
IGMDTAG_ID_PSD_SHEET_COLOR_SETTING	Sheet color setting.
IGMDTAG_ID_PSD_REFERENCE_POINT	Reference point.
IGMDTAG_ID_PSD_OBJ_BASED_EFFECTS_LAYER_INFO	Object-based effects layer info.
IGMDTAG_ID_PSD_GRADIENT_SETTINGS	Gradient settings.
IGMDTAG_ID_PSD_EXTRA_LAYERS_DATA	Extra layers data.
IGMDTAG_ID_PSD_PhotoshopAdditionalLayerInfo	Additional layer info.
IGMDTAG_ID_PSD_PhotoshopAdditionalLayerInfoKey	Additional layer key.
IGMDTAG_ID_PSD_PhotoshopAdditionalLayerInfoData	Additional layer data.
IGMDTAG_ID_PSD_PhotoshopAdditionalLayerInfoTag	Additional layer tag.
IGMDTAG_ID_PSD_PhotoshopAdditionalLayerInfoDescr	Additional layer description.
IGMDTAG_ID_PSD_HEADER	Header data section.
IGMDTAG_ID_PSD_PHOTOSHOP_RESOURCES	Photoshop resources.
IGMDTAG_ID_PSD_PHOTOSHOP_IMG_RESOURCE	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_PHOTOSHOP_IMG_RESOURCE_DATA	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_PHOTOSHOP_IMG_RESOURCE_SIZE	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_PHOTOSHOP_IMG_RESOURCE_ID	This value has been deprecated and will be removed from the public API in a future release.
IGMDTAG_ID_PSD_LAYER_INFO	Layer info.
IGMDTAG_ID_PSD_RECTANGLE	Layer rectangle.
IGMDTAG_ID_PSD_RECT_LEFT	Layer rectangle left.
IGMDTAG_ID_PSD_RECT_TOP	Layer rectangle top.
IGMDTAG_ID_PSD_RECT_RIGTH	Layer rectangle right.
IGMDTAG_ID_PSD_RECT_BOTTOM	Layer rectangle bottom.
IGMDTAG_ID_PSD_LAYER_CHANNELS_IDS	Layer rectangle IDs.
IGMDTAG_ID_PSD_LAYER_EXTRA_DATA	Layer extra data.
IGMDTAG_ID_PSD_LAYER_EXTRA_DATA_REC	Layer extra data items.
IGMDTAG_ID_PSD_LAYERS	PSD layers data.