对于从事平面广告设计的职场人员来说，有必要在设计制作环节，了解印前技术在宣传单印刷设计中的地位与作用，了解印前技术工艺特征和相关知识。基于此，本文介绍宣传单印刷设计中应注意的几点知识。
For professionals engaged in print advertising design, it is necessary to understand the position and role of prepress technology in leaflet printing design, as well as the process characteristics and related knowledge of prepress technology in the design and production process. Based on this, this paper introduces some knowledge that should be paid attention to in leaflet printing design.
一、颜色模式
1、 Color mode
颜色模式，是将某种颜色表现为数字形式的模型，或者说是一种记录图像颜色的方式。分为:RGB模式、CMYK模式、HSB模式、Lab颜色模式、位图模式、灰度模式、索引颜色模式、双色调模式和多通道模式
Color mode is a model that represents a color as a digital form, or a way to record the color of an image. It is divided into RGB mode, CMYK mode, HSB mode, lab color mode, bitmap mode, gray mode, index color mode, two tone mode and multi-channel mode
设计者要注意颜色模式的设置和转换。一般来说，设计者在RGB颜色空间中进行设计创作，输出时根据输出目的进行输出设置或转换。
Designers should pay attention to the setting and conversion of color mode. Generally speaking, designers design and create in RGB color space, and set or convert the output according to the output purpose.
(1)针对颜色一致性要求较高的包装设计，设计者在RGB颜色空间中进行设计创作，可嵌人RGB特性文件输出，由印刷企业进行CMYK模式转换。
(1) For packaging design with high requirements for color consistency, designers can design and create in RGB color space, which can be embedded into RGB characteristic file output, and the printing enterprise can convert CMYK mode.
(2)针对颜色一致性要求不太高的商业设计，如海报、杂志等，可直接转换成CMYK进行输出，转换时注意CMYK颜色空间的设置。
(2) Commercial designs that do not require high color consistency, such as posters and magazines, can be directly converted to CMYK for output. Pay attention to the setting of CMYK color space during conversion.
(3)针对网络或屏幕出版的设计，如宣传单设计、电子杂志印刷设计，可直接输出为RGB模式的文件，注意RGB颜色空间的设置。
(3) For the design of network or screen publishing, such as leaflet design and e-magazine printing design, you can directly output files in RGB mode. Pay attention to the setting of RGB color space.
二、图像分辨率
2、 Image resolution
数码图像有两大类，一类是矢量图，也叫向量图;另一类是点阵图，也叫位图。宣传单印刷业务的流程设计和业务管理
There are two categories of digital images. One is vector graph, also known as vector graph; The other is dot matrix, also known as bitmap. Process design and business management of leaflet printing business
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