AFAIK, separation is used in offset printing where you print on the same paper multiple times with different colorants/inks. One printing plate is produced per (separated) color. I'm not sure but separation colors might also be used in digital printing when working with spot colors.
http://en.wikipedia.org/wiki/Offset_printing That's about what I know. On 05.03.2009 21:57:48 Daniel Wilson wrote: > I'm trying to implement SetNonStrokingSeparation (a sibling of > http://svn.apache.org/repos/asf/incubator/pdfbox/trunk/src/main/java/org/apache/pdfbox/util/operator/SetNonStrokingGrayColor.java). > > This is needed as > http://svn.apache.org/repos/asf/incubator/pdfbox/trunk/src/main/java/org/apache/pdfbox/util/operator/SetNonStrokingColor.javagives > me (when I turn logging on) > > Not supported colorspace Separation within operator scn > > on some of the images/documents I'm trying to render. > > What, conceptually, is a Separation? I know there's > http://svn.apache.org/repos/asf/incubator/pdfbox/trunk/src/main/java/org/apache/pdfbox/pdmodel/graphics/color/PDSeparation.java > , but I'm still a little confused. > > Does anyone have a clear picture of what it is? > > Thanks! > > Daniel Wilson Jeremias Maerki
