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                                                           1294
           Index



    I entry 557-558                                                   structure and nomenclature 533-534
    K entry 558-559                                                   and undercolor-removal functions 575
    S entry 556                                                       See also
Transparency group subtype 361, 556, 559                                  isolated groups
transparency group XObjects 195, 361, 556-559                             knockout groups
    graphics state parameters, initialization of 211-212                  non-isolated groups
    soft masks, definition of 552-553                                     non-knockout groups
    version compatibility 1098                                            transparency group XObjects
transparency groups 195, 361, 515-516, 530-545                    transparency stack 195, 514
    alpha. See group alpha                                            graphics objects and 548
    as annotation appearances 557, 613                                group. See group stack
    backdrop. See group backdrop                                      opacity 515
    backdrop alpha 535                                                page group 516, 573
    backdrop color 535                                                shape 515
    and black-generation functions 575                                and transparency groups 515, 530-532
    blend mode 515, 531, 537, 539-540                             Transparent 3D render modes 815
    blending color space. See blending color space                transparent imaging model 35, 195, 513-576
    bounding box 559                                                  and alternate color space 267, 271, 519
    clipping to bounding box 559                                      appearance streams and 613
    color. See group color                                            backdrop. See backdrop
    color space. See group color space                                halftones and 573-574
    compositing computations. See compositing computa-                JPEG2000 and 88
        tions                                                         opaque overprinting, compatibility with 567-569
    compositing in 515-516, 530-531, 533-534, 546, 557,               overprinting 565-572
        559, 561                                                      overview 514-516
    compositing of 515-516, 530-531, 533-535, 552, 557-               patterns and 559-561
        559, 561, 569                                                 PostScript, compatibility with 576
    constant opacity 531                                              rendering intents and 574-575
    constant shape 531                                                rendering parameters and 573-575
    elements 534-536, 538-539, 541                                    spot colors and 563-565
    group attributes dictionary 146                                   text, showing of 401
    hierarchy 515, 530                                                text knockout parameter 223, 397, 403-404, 569
    immediate backdrop (group elements). See immediate                transfer functions and 573-574
        backdrop                                                      version compatibility 1098
    initial backdrop. See initial backdrop                            See also
    mask opacity 531                                                      alpha
    mask shape 531                                                        blend modes
    nested 515, 530, 534, 575                                             blending color space
    and nonstroking alpha constant 551                                    compositing
    notation 534                                                          opacity
    opacity. See group opacity                                            shape
    and overprinting 569-570, 572                                         soft masks
    page group 146, 516, 542-543, 556                                     transparency groups
    painting 558-559                                                      transparency stack
    in pattern cells 559
                                                                  TransparentBoundingBox 3D render modes 815
    and rendering intents 574-575
    rendering parameters ignored for 573                          TransparentBoundingBoxOutline 3D render modes 816
    shape. See group shape                                        TransparentWireframe 3D render modes 815
    soft clipping 550                                             trap network annotation dictionaries 976-977
    soft masks, deriving from 531, 552                                AnnotStates entry 976-977
        group alpha 546, 552-553                                      FontFauxing entry 977
        group luminosity 516, 546-547, 552-553                        LastModified entry 976
    spot color components, painting of 564                            Subtype entry 644, 976
    stack. See group stack                                            Version entry 976-978, 1128

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