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The bleeding we often say is the printing term 'bleeding position', also known as 'acupoint.' Its main function is to protect the finished product from cutting. When there is color, in the unintentional situation, the color is completely covered to the place to be expressed. For example: I want a solid circle printed on white paper. Everyone cuts it with scissors. If you cut it by the edge of the circle, no matter how serious it is, it will flow more or less and it will not print black and white paper. The cut black circle has a little white edge, and no matter whether the circle is round or not, as long as the white edge left on the black circle will make people feel uncomfortable. Is there any way to ensure that the circle that is cut out does not have a white border? In fact, it is very simple. When making this solid circle, the color boundary is slightly overflowed, that is, it is enlarged. This adds a point of insurance for not leaving a white edge. In practice, the circle in the example may be a package of various shapes, and the black in the example will be other colors. What is the quick and unified way? Of course, the standard size of the bleeding position now implemented is: 3mm. It is to increase the edge of 3mm along the actual size. This 'edge' is ideal for natural expansion of the color within the size. The uniformity of the bleeding position to 3MM has several advantages: 1. It is the manuscript that is produced, and the designer does not need to go to the printing factory to tell them how to cut (of course, the most accurate judgment of the actual shape is based on the cutting mark in the manuscript) ; 2. It is the maximum use of paper size when printing in the printing house.
Usually, when we make the design documents printed on the album, we need to pay attention to the bleeding line after the design is completed. How to set the bleeding, mainly considering the binding method after printing and the way of copying the large version. The general product sample uses saddle stitching. For a single page, there are three sides of the bleeding, and the left and right pages have different bleeding directions, so the page should be added with bleeding. Generally, when the page design is used, the upper and lower sides of the page are added by 3 mm, and the middle is not added. For thicker magazines and magazines, the same applies to locks. If the flat-panel calibration is a four-sided bleeding for a single page, it is more difficult to treat the four-sided bleeding in the middle of the cross-page pattern, so there is generally no bleeding. When you manually copy a large version, you must first split the page into a single-page file. Generally, it is packaged into an EPS file (a PDF file is also available). There is no bleeding when packing the three sides of the hemorrhage; The single-page file generated at this time will naturally remove the outside of the page or the part outside the bleeding, and automatically separate the pattern text of the spread.
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