In the design of printed matter, the resolution must reach 300 pixels/inch. It should be noted that the size should be set before the resolution, otherwise it is useless to increase the resolution if the size is small, so the resolution and size must be confirmed before the design, otherwise the picture will become blurred if the size is increased after the design is completed.

The bleeding (margin) of printed matter design is generally set to 3 mm, and the size of bleeding must be considered when designing printed matter, because the printed matter will be cut by 2mm-3mm later to ensure the perfection of the work.

The size is not fixed, the specific size is made according to the customer's requirements, and the traditional size is adopted if the customer has no requirements ~

When designing printed matter, the color mode should be set to CMYK mode to present printed matter images. CMYK is also called printing color mode. It consists of cyan, magenta, yellow and black inks, and the consumption of each ink varies from 0% to 100%. Because three kinds of CMY inks can't form pure black in printing, a separate black ink K is needed to form the pigment pattern of CMYK. The greater the amount of ink, the heavier and darker the color; On the contrary, the less ink, the brighter the color. CMYK is 0% white and 100% black.

Printing fonts: At present, the commonly used fonts in Chinese character printing include fine fonts, Song fonts, regular fonts and bold lines. When designing printed matter, try to use fonts with thin strokes as little as possible. If the font is too small, it is often easy to print, or the font looks unclear. The text is generally used: the first-class titles of Song Style, Calligraphy Style and Imitation Song Style are usually used: Da Hei, Da Dian Song Style and Xiao Dian Song Style; Commonly used secondary titles: Song typeface black, italics, bold print font size: the actual size of printed words is different from the size we see on the screen. Some designers with insufficient printing knowledge used small fonts when designing their works in order to pursue beautiful layout, but they found that they couldn't see clearly when printing, thinking that it was a problem of the printing factory, which was the result of insufficient printing knowledge. Printed characters are large and small. At present, font size measurement of Chinese characters in typesetting and image processing software mainly adopts font size system and dot system for printing. For example, when there are many characters in the photo album design, it is suggested that the headline should be larger than font No.3, the subtitle should be smaller than font No.4, the text should be smaller than font No.6, and the line spacing should generally be 1.5 times. It is suggested that the text size of instruction manual printing or album printing should not be smaller than font 7. If it is too small, it will affect the reading and printing quality.

Letterpress printing: the expressive force of ink is about 90%, and the color tone is rich. Strong color reproduction. Strong page fault tolerance. The printing volume is huge. Paper is widely used, and materials other than paper can also be printed. Generally used in a large number of printing materials, such as color magazines, mass building materials printing and so on.

Gravure printing (such as cigarette labels, wine labels, instant noodle pockets, candy paper and other printed materials with high printing quality and large printing volume)

Offset printing (this process is widely used, with stable quality and technology, such as newspapers, books, packaging, PVC, stickers)

Screen printing (according to the printing characteristics, the number that can be printed is very small, and dozens of sheets can be printed, and the shape of the printing plate can be changed.

There are many kinds of printed matter, and their use requirements and printing methods are different. Designers must choose the corresponding paper according to the use requirements and the requirements and characteristics of printing technology. From the purpose, it can be simply divided into common printing paper and artistic paper (also known as fancy paper). Commonly used printing paper includes road paper, book paper, matt paper and coated paper. , mostly used for writing books, picture books with matt paper and coated paper. When designing printed works, we should not only consider the collocation of images, characters, colors and other elements, but also consider whether the designed works can be realized through printing. Some graphic designers pay too much attention to the renderings and ignore the landing effect. Because of their ignorance of printing technology and paper materials, the renderings are far from the real thing. Only by knowing some knowledge of printing can your works be perfectly presented to everyone.