Trap color scaling
Here is animation showing the result of different values for
Trap Color
Scaling (%)
:
About using OPI with transparent effects
When using the OPI step in the refine process, you can use
transparency features for TIFF images, such as soft masks and drop
shadows.
Soft masks
PDF files can contain images with soft masks, such as feathered edges
or soft silhouettes, that blend smoothly into the background—even if
the background contains text or other images.
If OPI is required for TIFF images, Prinergy creates the soft mask from
the first detected alpha channel in the TIFF file. The mechanism is
similar to importing images into the Adobe InDesign software.
For example, here is an original image, a soft mask, and the resulting
image with a soft mask:
Original image
Soft mask
Resulting image
Drop shadows
PDF files can have drop shadows that blend smoothly into the
document background. The objects behind a drop shadow show
through the drop shadow; they are not hidden by it.
Typically, drop shadows result from creating one image as a shadow
and placing it on top of another image. For example, here is an original
image, a drop shadow, and the resulting image with a drop shadow:
About using OPI with transparent effects
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