Under the solution to the problem of output before

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Solutions to prepress output problems (Part 2)

before prepress output, we must pay attention to the following problems:

1. Select commonly used design and production software during production, such as PageMaker, etc., and try not to use word, etc

2. The mode of the pictures in the text must be CMYK mode, with an accuracy of at least 300*300dpi/pixel/inch

3. Check whether the words in the publication are four-color words. If so, change it to monochrome 100% black

4. If PageMaker, Weisi, founder and illustrator are used, their linked image files must be copied together with the original files

5. Photoshop files should preferably be PSD (unconsolidated layers) files to facilitate modification

6. Try to use common fonts, such as founder and wending. Try not to use rare fonts. If it has been used, CorelDRAW and illustrator first convert the text to the outline mode, which can avoid the problem that the output cannot be output because there is no such font in the output center. The distance between equal grid marks should be 10 mm. If there is a supplementary document, it must be copied together

7. Clearly inform the output center of the finished size, printing volume, printing paper, etc. of the printed matter, so as to facilitate the assembly and hanging

8. If the contents of the two pages are the same, but the black text parts are different (often encountered), then you only need to output the CMYK four colors on the first page and the K color on the second page, so as to avoid waste and save money. If there are only two colors (such as red and black) and the printing requirements are not high, it is only necessary to output them in the same color plate at the same time, and there is no need to divide them into two colors for output. You can deal with it when printing and plate making. It also saves money

point angle

Green: 15 degrees Red: 75 degrees yellow: 90 degrees Black: 45 degrees

generally, the arrangement of dots is neat, so there will be angles in application. For example, in monochrome printing, the line angle is mostly 45 degrees, which is based on the dots printed at this angle. It is visually most comfortable and difficult to detect the existence of dots, resulting in the effect of continuous gray tones. As for printing with two or more colors, we should pay attention to the combination of two angles, otherwise unnecessary patterns will be produced, which is called moier. Generally, if the angle difference between the two is 30 degrees, there will be no collision. Therefore, generally, for two-color printing, the main color or dark color is 45 degrees, the light color is 75 degrees, and the three colors are 45 degrees, 75 degrees, and 15 degrees respectively. If it is the four colors of color printing, they are 75 degrees for red, 90 degrees for yellow, 15 degrees for green (4) hollow fiber membrane products, and 45 degrees for black. These perspectives are not limited, but changed according to different needs

experience of prepress production output (let you get out of the dilemma of prepress production)

the font used in the document, confirm whether the output center is available, otherwise it needs to be carried

when storing graphics, check whether the color mode is CMYK mode to avoid color deviation

check the link file before output, and change the link information in time if there is any change

images with a large amount of graphics are stored in EPS format. Do not include halftone and include in the storage options Option. If it is placed in PageMaker, it should be cut and rotated before placing

if the graphics are in TIFF format, delete unnecessary channels and paths before storage. It is recommended not to store them in LZW compressed format

TIFF format with a large amount of graphics is put into PageMaker layout file, which is prone to tensile deformation, and should be stored in EPS or DCS format

pc version pageaker 6.5c Chinese font download, easy to lose words, symbol displacement, large characters with teeth

eps format files placed in PageMaker are easy to be lost after rotation. Please put them into PageMaker software after rotation

do not use bold effect and underline effect for Chinese characters in PageMaker

pc input text into PageMaker should delete the blank space, otherwise it is easy to appear garbled code

pc font has a version problem, which is easy to cause text displacement and loss after replacement. Please prompt the output center for the version number of the font used when exporting

the trap selection of PageMaker should be used with caution. Please watch the predictive effect

fonts in CoreIDRAW 8.0 cannot use Windows system Chinese fonts such as Song typeface, bold typeface, regular script, etc. do not print file information when printing

46 versions of Hanyi study four treasures output, symbols will appear in front of the word

coreldra PSD format image output speed is extremely slow. In some versions, with channels or rotation, the image will be incomplete and should be converted to bitmap

do not use paragraph text in CorelDRAW. Please turn it into art text or curve

coreldraw, you can use the shading and patterns attached to the software to fill the graphics, or as a base map; Please note:

1. Select the appropriate accuracy, usually 1% of the number of output lines 0 times. If the accuracy is too low, it will affect the accuracy of the graph, and if it is too high, it will affect the output speed

2. Pay attention to whether the attribute of the selected base map is in CMYK mode. Generally, the filled base map shading is in RGB mode and should be converted to four-color mode

when using CorelDRAW, in order to improve the speed (output) if the file is relatively large, there are more graphics in the combined version, it is best to combine the base images of several small versions and greatly improve the effectiveness of the traditional repair method to one, reduce the information of the file to continue to rise in a short time, improve the output speed, and pay attention not to convert the text into bitmap (especially small characters). If the text is converted into bitmap, it will affect the accuracy of the text

illustrator, for white fills and lines in freehand, check the overprint option in the attribute to avoid loss

spot color gradients in the illustrator file should be noted during color separation interpretation, please prompt the output center

if EPS dcs1.0 2.0 format or PS image format is used, please prompt the output center

the effect of gradient processing is not ideal in the desktop system. It is best to add a speck in the filter of Photoshop when making

please note when using Founder wits typesetting software: among the fonts provided by wits, the following fonts cannot be arranged in the output center: thick song amber 2 super thick black medium round colorful cloud Han bamboo slips Song Si Xin Bao Song Ping black thin golden body yellow grass Chang Mou Japanese 1 Japanese 2 Japanese white Kangti please indicate whether there is a large-area gradient of darker colors (red, yellow, black) in the output center when outputting

if you use vector graphics software such as CoreIDRAW, freehand, illustrator, etc., it is recommended to convert the font to a curve or path if there is no special effect processing, so as to ensure the font is safe

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