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            <div class="InDesign"><table><tr><td class="banner">InDesign CS4</td><td class="pod"><img src="images/PDF.gif" width="16" height="16" hspace="15" valign="50%" />&#160;&#160;
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                <h1>
                    About printing
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                <div><p>Whether
you are providing a multicolored document to an outside service provider,
or just sending a quick draft of a document to an inkjet or laser
printer, knowing a few basics about printing will make the print
job go more smoothly, and help to ensure that the finished document
appears as intended.</p>
<div class="section"><h4 class="sectiontitle">Types of printing</h4><p>When you print a file,
Adobe InDesign CS4
sends it to a printing device—either to be printed directly on paper
or to a digital printing press, or to be converted to a positive
or negative image on film. In the latter case, the film can then
be used to create a master plate for printing by a commercial press.</p>
</div>
<div class="section"><h4 class="sectiontitle">Types of images</h4><p>The simplest types of
images, such as text, use only one color in one level of gray. A
more complex image is one with color tones that vary within the
image. This type of image is known as a <dfn class="term">continuous-tone image</dfn>.
A photograph is an example of a continuous-tone image.</p>
</div>
<div class="section"><h4 class="sectiontitle">Halftoning</h4><p>To create the illusion of continuous
tone, images are broken down into a series of dots. This process
is called <dfn class="term">halftoning</dfn>. Varying the sizes and densities
of the dots in a halftone screen creates the optical illusion of
variations of gray or continuous color in the printed image.</p>
</div>
<div class="section"><h4 class="sectiontitle">Color separation</h4><p>Artwork that will be
commercially reproduced and that contains more than a single color
must be printed on separate master plates, one for each color. This process
is called <dfn class="term">color separation</dfn>.</p>
</div>
<div class="section"><h4 class="sectiontitle">Getting detail</h4><p>The detail in a printed
image results from a combination of resolution and screen frequency.
The higher an output device’s resolution, the finer (higher) the
screen frequency you can use.</p>
</div>
<div class="section"><h4 class="sectiontitle">Duplex printing</h4><p>Printer-specific features
such as duplex printing are available when you click the Printer
button in the Print dialog box. Duplex printing is available only
if the printer supports it. For information on duplex printing,
see your printer documentation.</p>
</div>
<div class="section"><h4 class="sectiontitle">Transparent objects</h4><p>If the artwork contains
objects with transparency features that you added using the Efects
panel or the Drop Shadow or Feather commands, the transparent artwork
will be flattened according to settings in the flattener preset
you choose. You can affect the ratio of rasterized images to vector
images in the printed artwork.</p>
</div>
<div class="section"><p>For more information on printing, see the Adobe Print
Resource Center at <a href="http://www.adobe.com/go/print_resource" target="_blank">www.adobe.com/go/print_resource</a>. To
troubleshoot printing problems, see <a href="http://www.adobe.com/go/learn_id_printtrouble" target="_blank">www.adobe.com/go/learn_id_printtrouble</a>.</p>
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                    <div class="separator">&#160;</div>
                    <div><p>&#160;<a href="WS9327D15E-A9FF-4698-BDA5-8791A891D061.html">About transparency flattener presets</a></p>
</div>
                    <p><a href="http://help.adobe.com/en_US/InDesign/6.0/WSa285fff53dea4f8617383751001ea8cb3f-7020a.html" title="http://help.adobe.com/en_US/InDesign/6.0/WSa285fff53dea4f8617383751001ea8cb3f-7020a.html">Specify a halftone screen frequency and resolution (adobe.com)</a></p><p><a href="http://www.adobe.com/go/print_resource" title="http://www.adobe.com/go/print_resource">Adobe Print Resource Center (adobe.com)</a></p>
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