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Adobe preflight total area coverage12/13/2023 Notice the difference between the following two examples:Īs you can see, when used intentionally, overprinting can add extra visual interest (and even textural interest) to your finished pieces. Such an effect can give a printed piece much more depth than if it were simply solid color on top. Others choose overprinting for the resulting visual effects – for example, simulating a screen printing effect where an overprinted top layer (such as a shape and/or large block letters) will interact with the colors, textures, and images on the layers below it. Some people choose to use overprinting as a sort of insurance policy against the white halos that are possible where two colors meet - that is, if the document registration is less than perfect. With overprinting though, once the “overprint fill” and/or “overprint stroke” settings get toggled, the first color will be printed, and then the second color will print directly on top of that, so you’ll see a blend of the two colors instead of two colors each in their pure, unblended, intended state. Instead, it’s as if each part of the visual overlap becomes its own object. The printer won’t print any parts of objects that lie underneath other objects the overlap won’t be printed with overlapping inks. This “knocking out” process prevents colors from mixing and getting muddy or overly saturated. When normally setting up files with one color on top of another, the color underneath gets “knocked out” by the printer, meaning no colors get mixed. When you want things to overlap, the object on top must be set to “overprint” instead of “knockout.” For example, if you’re trying to add some sort of finish to your print products, you’ll need to make sure you have overprint options selected for the objects that will be printed on top. Sometimes in printing, it makes sense to allow the top objects in a piece to print directly on top of other fully printed objects. Overprinting means that one color gets printed directly on top of another color. If you’ve ever sent something to print and it came back looking far from what you expected, overprinting settings could be the culprit.
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