PDF: What is DeviceRGB?
<ul>
<li>Is this <strong>(a)</strong> an own color space like AdobeRGB and sRGB or is this <strong>(b)</strong> a name for the RGB color space that the device uses?</li>
</ul>

<p>(in case it is <strong>(b)</strong>, what color space should be used to render a pdf? is sRGB the default to use? should a pdf viewer application be able to change this 'device' color space?)</p>