ORIS PDF Tuner Version 4.4.8 User Manual - image2output - Support

Transparency and Soft Edges
Creating Transparency for Layers
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Notes on Transparency Function
Transparency for Linework and CT Images
Transparency cannot be defined if you have activated both linework layers
and non-linework layers (CT images, text, tints etc.). You must activate
these layers separately.
Restrictions for Linework and Dummy Text
The transparency of linework and dummy text layers is restricted to settings
in which each color separation is either 0% or 100% transparent
(e.g. Y 100%, M 0%, C 100% K 0%).
Restrictions for Text
Transparent text layers cannot have more than one color, unless each
color separation is either 0% or 100% transparent.
If such layers contain characters with different colors, the colors are ignored
and all characters are given the default color (black).
Color Transformations with Black
For color transformations involving black there may be a considerable
discrepancy between the screen display and the final print result if RGB
images are used.
The reason is that for this kind of images the black percentage is produced
electronically from the colors red, green and blue. This is particularly
obvious for background colors that show through behind the white
areas of a grayscale image.
Screen Display During Modifications
When modifying transparent layers or layers located under such layers,
the layout may not be displayed correctly on the screen. Examples:
• Text is displayed as opaque when being corrected.
• Multiple layers moved or transformed at the same time are displayed
as opaque.
• While transparent layers are moved or transformed, layers located
under them are not displayed correctly.
• When setting multiple layers to transparent at the same time, they
may temporarily appear out of stacking order. A message appears in
this case informing of this situation (see also page 16-10).
The screen display is correct again when the modification has finished.
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