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Hi,

I need some help with the overprinting and knockout functions.

I made a flyer that has orange headlines on a black background. To be
able to print it in the print shop I enabled the color management
system, used a color profile and created all colors in the cmyk color
space.

Then I exported the flyer to PDF X-3 and checked the lookout in Adobe
Acrobat reader. The Problem was, that I couldn?t see the orange text.
I could only see the black background of the orange headline.

I played around a little bit and found out, that everything works, if
I change the overprinting option of the text box to knockout.

Because knockout seems not to be the default option for text boxes,
I?m insecured a little bit. Is knocking out the text the right option
for printing light text on dark background?

Shouldn?t it be possible to overprint the black background with other
colors? I?m not a professional so I don?t know how this really works
in the printer afterwards but I read something about artefacts in some
situations with one of these options.

I would be pleased if you can clarify this a little bit for me because
I want to print the flyer in a higher quantity and the need to print
the flyer again would not be so cheap for me ;)

Kind regards
Clemens John
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