Mac OS

8BPS

Windows

.PSD

4

서명: 항상 '8BPS' 입니다. 만약 이 서명 값이 일치하지 않는다면, 읽으려고 시도하지 마십시오.

2

버전: 항상 1 입니다. 만약 이 값이 일치하지 않는다면, 읽으려고 시도하지 마십시오. (**PSB** 버전은 2)

6

예약됨: 0 이어야 합니다.

2

모든 알파 채널을 포함한, 이미지의 채널 수. 1 에서 56 까지 지원합니다.

4

픽셀로 표현한 이미지의 높이. 1 에서 30,000 까지 지원합니다.

(**PSB** 최대는 300,000)

4

픽셀로 표현한 이미지의 가로. 1에서 30,000 까지 지원합니다.

(**PSB** 최대는 300,000)

2

심도: 채널 당 비트 수. 1, 8, 16, 32 중 하나 입니다.

2

파일의 컬러 모드. 

Bitmap = 0; Grayscale = 1; Indexed = 2; RGB = 3; CMYK = 4; Multichannel = 7; Duotone = 8; Lab = 9.

4

이어서 나오는 컬러 데이터의 길이

Variable

컬러 데이터

4

이미지 리소스 섹션의 길이. 길이는 0 이 될 수 있습니다.

Variable

이미지 리소스들 (Image Resource Blocks ).

4

레이어와 마스크 정보 섹션의 길이. (**PSB** 인 경우 8 바이트.)

Variable

Layer info (자세한 내용은 See Layer info 참고).

Variable

Global layer mask info (자세한 내용은 See Global layer mask info 참고).

Variable

(Photoshop 4.0 and later)

다양한 데이터 타입을 포함하는 태그(tagged)된 블럭의 연속. 여기에 들어갈 수 있는 데이터 타입의 목록은 See Additional Layer Information 를 참고.

4

레이어 정보 섹션의 길이. 2의 배수값.(**PSB** 의 경우 8 바이트)

(역주: 실제로 확인해보니 2의 배수가 아니라 4의 배수)

2

레이어 갯수. 만약 이 값이 음수라면, 이 값의 절대값이 레이어의 갯수이고, 첫번째 알파 채널이  병합(mergy)의 결과로 transparency 데이터를 가지고 있습니다.

Variable

각 레이어에 대한 정보. 각 레이어에 대한 이 정보의 구조체는 See Layer records 에 나와 있습니다.

Variable

채널 이미지 데이터. 각 레이어에 대해서 한개 또는 그 이상의 이미지 데이터(구조는 See Channel image data 를 참고) 를 가지고 있습니다. 레이어의 순서는 '레이어 정보'(이 표의 바로 위 행) 와 동일합니다.

2

압축 방식:

0 = Raw image data

1 = RLE compressed the image data starts with the byte counts for all the scan lines (rows * channels), with each count stored as a two-byte value. The RLE compressed data follows, with each scan line compressed separately. The RLE compression is the same compression algorithm used by the Macintosh ROM routine PackBits , and the TIFF standard.

2 = ZIP without prediction

3 = ZIP with prediction.

Variable

The image data. Planar order = RRR GGG BBB, etc.

length

Length of the image resource data.

hex data

Image resource data in hexadecimal.

columns

Width of the image in pixels.

rows

Height of the image in pixels.

depth

Number of bits per channel. Must be 1 or 8.

mode

Image mode. Bitmap/grayscale = 1; Lab = 2; RGB = 3; CMYK = 4.

pad channels

Number of other channels store in the file. Ignored when reading. Photoshop uses this to include a grayscale image that is printed on non-color PostScript printers.

block size

Number of bytes per row per channel. Will be either 1 or formula (below):

1 = Data is interleaved.

(columns*depth+7)/8 =Data is stored in line-interleaved format, or there is only one channel.

binary/ascii

1 = Data is in binary format.

2 = Data is in hex ascii format.

data start

Entire PostScript line immediately preceding the image data. This entire line should not occur elsewhere in the PostScript header code, butit may occur at part of a line.

254

NewSubFileType

Ignored

0

256

ImageWidth

1 to 30000

1 to 30000

257

ImageLength

1 to 30000

1 to 30000

258

BitsPerSample

1, 2, 4, 8, 16 (all same)

1, 8, 16

259

Compression

1 (uncompressed), 2 (CCITT), 5 (LZW), 7 (JPEG), 8 (ZIP), 32773 (PackBits)

1, 5, 7, 8

262

PhotometricInterpretation

0, 1, 2, 3, 5, 8, 9

0 (1-bit), 1 (8-bit), 2, 3,5,8

266

FillOrder

1

No

270

ImageDescription

Printing Caption

Printing Caption

271

EXIF: Make

272

EXIF: Model

273

StripOffsets

Yes

Yes

277

SamplesPerPixel

1 to 24

1 to 24

278

RowsPerStrip

Any

Single strip if not compressed, multiple strips if compressed.

279

StripByteCounts

Required if compressed

Yes

282

XResolution

Yes

Yes

283

YResolution

Ignored (square pixels assumed)

Yes

284

PlanarConfiguration

1 or 2

1

296

ResolutionUnit

2 or 3

2

305

EXIF: Software

306

EXIF: Date/time

315

EXIF: Artist

317

Predictor

1 or 2

1 or 2

320

ColorMap

Yes

Yes

322

TileWidth

Yes

No

323

TileLength

Yes

No

324

TileOffsets

Yes

No

325

TileByteCounts

Required if compressed

No

332

InkSet

1

No

336

DotRange

Yes, if CMYK

Yes

338

ExtraSamples

Ignored (except for count)

Photoshop 5.5 and earlier writes 0. Photoshop 6.0 and later writes 0 or 1 based on the spec.

Mac OS

8BAC

Windows

.ATN

4

Version ( = 16)

Variable

Unicode string: action set name

1

Boolean: true if set is expanded for the Actions palette

4

Number of actions in action set

The following is repeated for each action in the set

2

Index of action

1

Boolean: true if Shift key needed for keyboard shortcut

1

Boolean: true if Command key needed for keyboard shortcut

2

Color index information

Variable

Unicode string: action name

1

Boolean: true if action is expanded in the Actions palette

4

Number of items in action

The following is repeated for each item

1

Boolean: true if action is expanded in the Actions palette

1

Boolean: true if action is enabled

1

Boolean: true if dialogs should be displayed

1

Options for displaying dialogs

4

Identifier: 'TEXT' or 'long'

Variable

Event: if identifier is 'TEXT' ,4 bytes of length followed by the string;

if identifier is 'long' , 4 bytes of itemID

Variable

Dictionary name: 4 bytes of length followed by the string

4

-1 if a descriptor follows or 0 for none.

Variable

Descriptor: see Descriptor structure (See Descriptor structure) for details

Variable

Unicode string: name from classID

Variable

classID: 4 bytes (length), followed either by string or (if length is zero) 4-byte classID

4

Number of items in descriptor

The following is repeated for each item in descriptor

Variable

Key: 4 bytes ( length) followed either by string or (if length is zero) 4-byte key

4

Type: OSType key

'obj ' = Reference

'Objc' = Descriptor

'VlLs' = List

'doub' = Double

'UntF' = Unit float

'TEXT' = String

'enum'= Enumerated

'long' = Integer

'bool' = Boolean

'GlbO' = GlobalObject same as Descriptor

'type' or GlbC'= Class

'alis' = Alias

'tdta' = Raw Data

Variable

Item type: see the tables below for each possible type

4

Number of items

The following is repeated for each item in reference

4

OSType key for type to use:

'prop' = Property

'Clss' = Class

'Enmr' = Enumerated Reference

'rele' = Offset

'Idnt' = Identifier

'indx' = Index

'name' =Name

Variable

Item type: see the tables below for each possible Reference type

Variable

Unicode string: name from classID

Variable

classID: 4 bytes (length), followed either by string or (if length is zero) 4-byte classID

Variable

KeyID: 4 bytes (length), followed either by string or (if length is zero) 4-byte keyID

4

Units the following value is in. One of the following:

'#Ang' = angle: base degrees

'#Rsl' = density: base per inch

'#Rlt' = distance: base 72ppi

'#Nne' = none: coerced.

'#Prc'= percent: unit value

'#Pxl' = pixels: tagged unit value

8

Actual value (double)

8

Actual value (double)

Variable

Unicode string: name from classID

Variable

ClassID: 4 bytes (length), followed either by string or (if length is zero) 4-byte classID

Variable

String value as Unicode string

Variable

Unicode string: name from ClassID.

Variable

ClassID: 4 bytes (length), followed either by string or (if length is zero) 4-byte classID

Variable

TypeID: 4 bytes (length), followed either by string or (if length is zero) 4-byte typeID

Variable

enum: 4 bytes (length), followed either by string or (if length is zero) 4-byte enum

Variable

Unicode string: name from ClassID

Variable

ClassID: 4 bytes (length), followed either by string or (if length is zero) 4-byte classID

4

Value of the offset

1

Boolean value

4

Length of data to follow

Variable

FSSpec for Macintosh or a handle to a string to the full path on Windows

4

Number of items in the list

The following is repeated for each item in list

4

OSType key for type to use. See See Descriptor structure for types.

Variable

See the tables above for each possible type

Mac OS

8BLT

Windows

.AMP

Mac OS

8BIC

Windows

.API

2

Version ( = 7)

27*2

Nine sets of three short integers specifying th\e xyY (CIE) values for the inks and their combinations. The inks are specified in the order cyan, magenta, yellow, magenta-yellow (red), cyan-yellow (green), cyan-magenta (blue), cyan-magenta-yellow, followed by the white and black points. Each set is written in the order xyY where:

x = 0...10000, representing 0.0...1.0000. y = 1...10000, representing 0.0001...1.0000. Y = 0...20000, representing 0.00...200.00.

2

Dot gain. Short integer from -10...40, representing -10%...40%.

1

Use curves. = 1 if curves table present.

1

Filler: zero

13*4*2

Only present if "use curves" = 1.

4 sets of 13 short integers specifyting the cyan, magenta, yellow, and black curve percentages from the Dot Gain Curves dialog. 0...1000, representing 0.0...100.0 %

Variable

Separation setup: see See Separation file format

Mac OS

8BCB

Windows

.ACB

4

Signature: 8BCB

2

Version ( =1 )

2

Book ID. Existing IDs: 3000 (ANPA), 3001 (Focoltone), 3002 (PantoneCoated), 3003 (PantoneProcess), 3004 (PantoneProSlim), 3005 (PantoneUncoated), 3006 (Toyo), 3007 (Trumatch), 3008 (HKSE), 3009 (HKSK), 3010 (HKSN), 3011 (HKSZ), 3012 (DIC), 3020 (PantonePastelCoated), 3021 (PantonePastelUncoated), 3022 (PantoneMetallic)

Variable

Unicode string: title

Variable

Unicode string: prefix

Variable

Unicode string: postfix

Variable

Unicode string: description

2

Number of colors (<= 8000)

2

Colors per page (<= 9)

2

Key color page; must be less than or equal to colers per page

2

Color type. 0 = RGB; 2 = CMYK; 7 = Lab

The following are repeated for the number of colors

Variable

Unicode string: name

6

Unique key for the color

4

Color values: 4 bytes for CMYK; 3 bytes for RGB and Lab

Mac OS

8BCT

Windows

.ACT

Mac OS

8BCO

Windows

.ACO

Mac OS

8BFS

Windows

.SHC

4

Type ( = '8BFS' )

2

Version ( = 1 )

4

Count of contours

The following is repeated for each contour

4

Version ( = 1 or 2)

Variable

Unicode string: contour name

Variable

version 1 or 2 data follows. See See Contours Version 1 for version 1 and See Contours Version 2 for version 2.

Mac OS

8BSC

Windows

.CRV

2

Version ( = 1 or = 4)

2

Count of curves in the file.

The following is the data for each curve specified by count above

2

Count of points in the curve (short integer from 2...19)

point count * 4

Curve points. Each curve point is a pair of short integers where the first number is the output value (vertical coordinate on the Curves dialog graph) and the second is the input value. All coordinates have range 0 to 255. See also See Null curves below.

4

= 'Crv ' for extra curve information

2

Version ( = 4)

2

Count of items to follow.

The following is the data for each curve specified by count above

2

Before each curve is a channel index.

2

Count of points in the curve (short integer from 2...19)

point count * 4

Curve points. Each curve point is a pair of short integers where the first number is the output value (vertical coordinate on the Curves dialog graph) and the second is the input value. All coordinates have range 0 to 255. See also See Null curves below.

Mac OS

8BCK

Windows

.ACF

50

Weights.

The first 25 values are the custom weights from -999...999, applied to pixels offset from each pixel by [-2,-2] to [2,2]. The values progress through horizontal offsets first, as follows:

{[-2,-2],[-1,-2],[ 0,-2],[ 1,-2],[ 2,-2],

[-2,-1],[-1,-1],[ 0,-1],[ 1,-1],[ 2,-1],

[-2, 0],[-1, 0],[ 0, 0],[ 1, 0],[ 2, 0],

[-2, 1],[-1, 1],[ 0, 1],[ 1, 1],[ 2, 1],

[-2, 2],[-1, 2],[ 0, 2],[ 1, 2],[ 2, 2]}

27*2

Ink colors.

Nine sets of three short integers specifying the xyY (CIE) values for the inks and their combinations. The inks are specified in the order cyan, magenta, yellow, magenta-yellow (red), cyan-yellow (green), cyan-magenta (blue), cyan-magenta-yellow, followed by the white and black points. Each set is written in the order xyY where:

x = 0...10000, representing 0.0...1.0000. y = 1...10000, representing 0.0001...1.0000. Y = 0...20000, representing 0.00...200.00.

2

Scale. Short integer from 1...9999.

2

Offset. Short integer from -9999...9999.

Mac OS

8BDT

Windows

.ADO

2

Version ( = 1)

2

Count . Number of plates in duotone spec (short integer). 1 = Monotone; 2 = Duotone; 3 = Tritone; 4 = Quadtone.

4*10

Four ink colors, regardless of the number of plates. The contents of the colors beyond the last plate specified by Count are undefined. Each color is 10 bytes and described in See Duotone color structure. It is identical to the format in a Colors load file.

4*64

Four ink names, regardless of the number of plates. Each name is streamed as a Pascal-style string with a length byte followed by the string name. Names may not be more than 63 characters. Each name is padded to occupy 64 bytes, including the length byte. Any names beyond the last plate specified byCount should be empty, size = 0.

4*28

Four ink curves, regardless of the number of plates. Described in See Ink curves structure.

2

Dot gain ( = 20). Kept for compatability with Photoshop 2.0. Ignored.

11*10

Eleven overprint colorscolors, regardless of the number of plates. The number of defined overprints depends on Count .

Monotones = no overprint colors. Duotones = one overprint color. Tritones = four overprint colors. Quadtones = 11 overprint colors. The contents of the colors beyond the last defined overprint are undefined. Each color is 10 bytes and described in See Duotone color structure. It is identical to the format in a Colors load file.

Mac OS

8BHS

Windows

.AHS

2

Version ( = 5)

4*18

Four screen descriptions. See See Halftone screen parameter structure.

Variable

For every screen that has a custom spot function, the PostScript function text is written here, one after the other, with no header information, in the same order as the screen settings. The size of each custom spot is the absolute value of its negative shape code.

4

Ink's screen frequency, in lines per inch. Binary fixed point value ;16 bits representing the integer and fractional parts from 1.0...999.999.

2

Units for the screen frequency. Lines per inch = 1; lines per centimeter = 2. Only affects display, not screen frequency.

4

Angle for screen. Binary fixed point value with 16 bits representing the integer and fractional parts from -180.0000 ... 180.0000, measured in degrees.

2

Code representing the shape of the halftone dots. 0 = Round; 1 = Ellipse; 2 = Line; 3 = Square; 4 = Cross; 6 = Diamond. Negative numbers represent custom shapes; the absolute value is the size in bytes of the custom spot function described in See Halftone screens file format.

4

= 0. Not currently used by Photoshop.

1

Boolean. 1 = Use accurate screens; 0 = Use other.

1

Boolean. 1 = Use printer's default screens; 0 = Use other.

Mac OS

8BHA

Windows

.AHV

2

Version ( = 2)

1

0 = Use settings for hue-adjustment; 1 = Use settings for colorization.

1

Padding byte; must be present but is ignored by Photoshop.

6

Colorization.

Photoshop 5.0: The actual values are stored for the new version. Hue is -180...180, Saturation is 0...100, and Lightness is -100...100.

Photoshop 4.0: Three short integers Hue, Saturation, and Lightness from -100...100. The user interface represents hue as -180...180, saturation as 0...100, and Lightness as -100...1000, as the traditional HSB color wheel, with red = 0.

6

Master hue, saturation and lightness values.

6 sets of the following 14 bytes (4 range values followed by 3 settings values)

8: range values

For RGB and CMYK, those values apply to each of the six hextants in the HSB color wheel: those image pixels nearest to red, yellow, green, cyan, blue, or magenta. These numbers appear in the user interface from -60...60, however the slider will reflect each of the possible 201 values from -100...100.

For Lab, the first four of the six values are applied to image pixels in the four Lab color quadrants, yellow, green, blue, and magenta. The other two values are ignored ( = 0). The values appear in the user interface from -90 to 90.

6:settings values

Mac OS

8BLS

Windows

.ALV

2

Version ( = 2)

29 * 10

29 sets of level records, each level containing 5 short integers (see See Level record structure).

2

Input floor (0...253)

2

Input ceiling (2...255)

2

Output floor (0...255). Matched to input floor.

2

Output ceiling (0...255)

2

Gamma. Short integer from 10...999 representing 0.1...9.99. Applied to all image data.

4

= 'Lvls' for extra level information

2

Version ( = 3)

2

Count of total level record structures. Subtract the legacy number of level record structures, 29, to determine how many are remaining in the file for reading.

Variable

Additianol level records according to count. See Level record structure

Mac OS

8BMS

Windows

.AMS

2

Version ( = 2.)

2

Gamma. Short integer from 75...300 representing 0.75...3.00.

2*2

White point. Two short integers as CIE chromaticity coordinates: x,y . x = 0...10000 representing 0.0...1.0000. y = 1...10000 representing 0.0001...1.0000.

6*2

Phosphors. Three sets of two integers giving x,y coordinates of the red, green, and blue phosphors. x = 0...10000 representing 0.0...1.0000. y = 1...10000 representing 0.0001...1.0000. In the order red x , red y ; green x , green y ; blue x , blue y .

Mac OS

8BXT

Windows

.AXT

2

Version ( = 1)

2

Short integer indicating what space the color components are in. 7 = Lab color, 8 = grayscale. No other values are supported.

6

Component ranges. Six unsigned byte values representing the range of colors within which a pixel's color must fall to be considered selected for color replacement, or color range selecting. Described in See Component range structure.

2

Fuzziness. Short integer from 0...200 controlling how colors close to selected colors are affected.

6

Transform settings.

When used with Replace Color: Three short integers from -100...100. Described in See Replace color transform settings.

When used with Color Range: Writes zeros into the three short integers and ignores.

Mac OS

8BSV

Windows

.ASV

2

Version ( = 1)

2

Correction method.. 0 = Apply color correction in relative mode; 1 = Apply color correction in absolute mode.

80

Ten eight-byte plate correction records, described in See Plate correction structure.

The first record is ignored by Photoshop and is reserved for future use. It should be set to all zeroes.

The rest of the records apply to specific areas of colors or lightness values in the image, in the following order: reds, yellows, greens, cyans, blues, magentas, whites, neutrals, blacks.

2

Amount of cyan correction. Short integer from -100...100.

2

Amount of magenta correction. Short integer from -100...100.

2

Amount of yellow correction. Short integer from -100...100.

2

Amount of black correction. Short integer from -100...100.

Mac OS

8BST

Windows

.AST

2

Version ( = 300)

1

Boolean. True if contains Lab->CMYK table.

1

Boolean. True if contains CMYK->Lab table.

33*33*33*4

If file contains Lab->CMYK table, this section contains CMYK colors for 33*33*33 Lab colors. The CMYK colors are written in interleaved order, one byte each ink. 0 = 100%, 255 = 0%. See See Generating Lab source colors below.

(33*33*33 +256)*3

If file contains CMYK->Lab table, this section contains Lab colors for 33*33*33+256 CMYK colors. The Lab colors are written in interleaved order, one byte per component. See See Generating CMYK source colors below.

1

Boolean. True if gamut table follows.

1

If entry above is false , this byte will not be present.

If true, this byte should be set to 1 for compatibility.

(((33*33*33L)+7)>>3) if gamut table present, zero otherwise

Gamut table, if present. The gamut table is a bit table indexed in the same way as the Lab->CMYK table with the high bit of the first byte at index 0. See See Testing for bits in the gamut table below.

Mac OS

8BTF

Windows

.ATF

2

Version ( = 4)

112 (= 28*4)

Four transfer functions , described in See Transfer function structure.

The file always contains four functions. When writing the printer transfer functions for grayscale images, for instance, Photoshop writes four copies of the single transfer function specified in the user interface.

26

Curve. Array of 13 short integers from 0...1000 representing 0.0...100.0. All but the first and last value may be -1, representing no point on the curve. Any curves beyond the last plate should be equal to the NULL curve. A NULL transfer curve looks like this: 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1000.

2

Boolean. 0 = Let printer supply curve; 1 = Override printer's default transfer curve.