it places the unaffected image below the effected portion of the
image.
●
Vector EPS files work with OPI but are rasterized in areas where
they interact with transparency.
●
OPI does not work for file formats with low-resolution FPO/proxy
and DCS previews. The QuarkXPress software renders the
transparent effect using the low-resolution preview in the FPO and
DCS, because the high-resolution data is not available. These image
types will be low-resolution in areas where they interact with
transparency, even after the high-resolution OPI swap has taken
place.
Placed PDF files
As in earlier versions of the QuarkXPress software, placing PDF files
may not work correctly. Objects inside the PDF file that use overprints
or native unflattened PDF 1.4 transparency often don't output correctly
from QuarkXPress. If you need to retain the appearance of overprints
and transparency effects in a PDF file to be placed:
1. Open the PDF file in the Adobe Acrobat software.
2. Save the file in EPS format.
3. Place the EPS file (not the PDF file) in QuarkXPress.
Note: Placing a large, almost invisible, transparent object (for example, 0.1% tint)
over a PDF file forces the QuarkXPress flattener to rasterize the PDF, often with
better results.
Color recommendations
Use a DeviceN color setup, such as
Composite CMYK and Spot
, when
working with spot colors. However, this setting will convert LAB and
RGB images to CMYK. Quark's color management will convert RGB to
CMYK using the ICC profile specified in the color setup. If it is
important to preserve LAB and RGB images in their original color
spaces, select the
As Is
output option.
If you do not intend to color manage CMYK to CMYK conversions
during output and you are using
QuarkXPress 7 Default
or
QuarkXPress Emulate Legacy
source setups, then no color conversion
would be performed on CMYK data. The reason no color conversions
would be performed in this case is because both default setups have
the
Color Manage CMYK Sources to CMYK Destinations
setting
disabled.
In order to preserve spot color information you need to use DeviceN
instead of composite CMYK output. To use DeviceN, click
Edit
>
Color
Setups
>
Source
. Click
Duplicate
to create a copy of the default setup.
In the CMYK tab, click
Color Manage CMYK Sources to CMYK
Destinations
, and save the setup with a new name.
134
Chapter 7—Input files
