Adobe 718659340025 Printing Guide - Page 54

How flattening changes the document

Get Adobe 718659340025 - InDesign CS - PC PDF manuals and user guides View all Adobe 718659340025 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 54 highlights

How flattening changes the document At its simplest, the process of flattening changes how overlapping transparency objects are drawn, without changing how they look, so that the document still appears to use transparency but will successfully print on an output device that doesn't handle native transparency. To achieve this effect, the InDesign transparency flattener examines the interactions at every 51 point of the transparency and does three things to spreads containing transparency: 1. It cuts the transparent art apart and represents overlapping transparent regions by discrete, abutting elements, each with its own color. 2. It retains the integrity of the original transparent objects as much as possible (e.g., type stays type, vectors stay vectors), but it may rasterize some type or artwork depending on the transparency flattener preset that's applied. 3. It sets rasterized areas to a resolution determined by the current transparency flattener preset. Images already present in the document are flattened using the resolution of the highest-resolution image in the document. Original art with native transparency Flattened art simulates transparency by cutting up objects (objects slightly shifted for illustrative purposes) If a spread doesn't contain transparency, the flattener leaves it alone. Note: The transparency flattener in InDesign CS preserves overprinting settings except in two cases: • The overprints are affected by transparency. In this case, flattening takes the overprinting objects into account, resulting in the same output that would happen on a transparencycapable RIP. Discrepancies may occur, however, if the RIP is configured to convert spot colors to process. You can use the Ink Manager to convert spot colors to process colors before printing.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
51
How flattening changes the document
At its simplest, the process of flattening changes how overlapping transparency objects are
drawn, without changing how they look, so that the document still appears to use transpar-
ency but will successfully print on an output device that doesn’t handle native transparency.
To achieve this effect, the InDesign transparency flattener examines the interactions at every
point of the transparency and does three things to spreads containing transparency:
1.
It cuts the transparent art apart and represents overlapping transparent regions by
discrete, abutting elements, each with its own color.
2. It retains the integrity of the original transparent objects as much as possible (e.g., type
stays type, vectors stay vectors), but it may rasterize some type or artwork depending on
the transparency flattener preset that’s applied.
3.
It sets rasterized areas to a resolution determined by the current transparency flattener
preset. Images already present in the document are flattened using the resolution of the
highest-resolution image in the document.
Original art with native transparency
Flattened art simulates transparency
by cutting up objects
(objects slightly shifted for illustrative purposes)
If a spread doesn’t contain transparency, the flattener leaves it alone.
Note:
The transparency flattener in InDesign CS preserves overprinting settings except in
two cases:
•
The overprints are affected by transparency. In this case, flattening takes the overprinting
objects into account, resulting in the same output that would happen on a transparency-
capable RIP. Discrepancies may occur, however, if the RIP is configured to convert spot
colors to process. You can use the Ink Manager to convert spot colors to process colors
before printing.