Prepress output typesetting and image processing technology

The output image type is RGB. What will happen to the result?

A: If the types of images to be output are RGB, LAB, ... instead of CMYK, grayscale, and bitmap, the result is that the four-color map becomes a monochrome image when it is output. This is because most of the software (Free-Hand, Pagemaker, etc.) does not separate the RGB image. If the RGB image is misused, the color separation film that comes out of it or the image is only on the black version. Parts are empty or have equivalent grayscales on the four color plates. So, if your scanner supports direct-scan CYMK, it is best to scan directly into four-color files; if you can only get RGB, then you must not forget to convert RGB to CYMK before outputting. Since it is difficult to see whether it is RGB or CYMK from a file name or a file icon in general, it is troublesome to open them one by one. For Tiff maps, it is possible to make judgments by observing the preview colors of the images from typesetting or imposition software; CYMK's Tiff map preview is more vivid and unnatural, and RGB is a more natural color. As for the EPS chart, it is difficult to distinguish from the preview, and one can only check one by one without worrying.

Using the JPEG image can be seen on the screen, but what happens when the output is missing?

A: The JPEG compression format is not used properly. The result is that although there are images on the screen, the output is missing. Solution: In Photoshop, re-store the TIFF or EPS format and go back to Pagemaker to re-link.

What are the reasons for the jagged and serrated overlap words sometimes appearing on the output?

A: Use boldface in FreeHand/PageMaker. If Chinese fonts used in FreeHand use Heavy, most cases will be ambiguous; in Chinese fonts used in PageMaker Bold, it will be a toothed overlapped word, and other font effects in PageMaker will also be a problem. . Solution: Try to avoid the above effects. If the font needs to be bold, the corresponding bold Chinese characters (coarse or bold) should be used. If there is no corresponding bold type, you can make the text into a vector or add a border to the original, but the added size cannot exceed 3% of the size of the original font. If the font itself is in bold type, the proportion should be smaller.

What if the objects under the gray net pass through?

A: Because the current version of the software does not see which objects are imprinted, it is best to tell the output center that the black version needs to be aware of the gray network usage in the document prior to printing. In addition, when the gray is defined, add 1% yellow.

The output of the black and white manuscript image is blank, what is the reason why the black and white manuscript is printed out in the color draft?

A: There are pictures for black and white prints, but there is no picture on the output. The main reason is that there are only main files but no color separation files. The main reason for printing black-and-white images in color printing is that the main file only contains the low-resolution grayscale image. Although it is a color image for color printing, it is very rough. The main reason is that the main file contains a low resolution. Like color illustration.

Look at the screen on the very same text or form, how to do after the output is not uniform?

A: The use of spaces in the small picture and paragraph heads, and spaces in the table will make the text or tables output on the screen appear to be uneven. Solution: Zooming graphics in typesetting software is very convenient, but the cost is multiple or several times the output time, so be sure to set the size and resolution in the image processing software (Photoshop), and then put the typesetting software; The form uses PageMaker or QuarkXPree, these softwares have very good indentation and positioning function in itself, can make very professional and very tidy form. As for the paragraph head, it should be set in the row. In addition, users who frequently use Pagemaker must have encountered this situation: Chinese characters are difficult to align. The solution is: use Ctrl + Shift + M or use the Tab key to get it, or disassemble it into n text blocks, manually align.

What if the screen rewrite time is too long when PageMaker changes pages or changes?

A: Because PageMaker needs to calculate exactly where each element is placed on the page, it needs more screen repaint time than a word processor. The solution is: 1 Do not use the color master, select the black and white option in the monitor control panel. 2 When doing typesetting, use the edit menu's pre-set command to make Greek text large. Page-Maker displays Greek text much faster, and when you want to read the text format, you can always change the font size back to the actual size. 3 Each time a page is displayed on the screen. If the layout is a folded page, do not display two pages (the Canceling Page option in the Page Setup dialog box). It takes more time to write two pages than one page. 4 In the Page menu, change the display to be smaller than the actual page.

Setting a light color in Freehand, but outputting a dark color, what is the reason?

A: Freehand has a pattern fill that fills a regular pattern with a regular pattern. This type of pattern is dot-matrix, and the Level IRip imagesetters that were previously equipped do not support this filled output, and Level II imagesetters can output. But one thing to note is that you can't set colors outside the field for it. If you try to set a light color of C10% and Y10%, although they are all displayed on the screen, the output must be 100% dark green for CY. Solution: If you use a color outside the field, it is best to use a printer to print out, scan for a binary TIFF, and then color the FreeHand.

What was the cause of the bleeding on the typesetting but no bleeding on the output film?

Answer: In the bleeding print design, the size of the bleeding is determined by the size of the manuscript and the user's requirements. Many kinds of typesetting software this value is a fixed 3mm. However, FreeHand must enter the corresponding value, otherwise it will result in a serious result in the typesetting was bleeding but the output of the film does not have bleeding.

When the output text appears garbled or dropped, how to solve?

Answer: 1 In FreeHand, convert text to a path and treat some text special effects differently. Because the text becomes a path, the special effects of the text will no longer exist and will be inconsistent with the customer's requirements. 2 Solve the problem of character garbled in PageMaker can only remedy the problem according to different reasons:

One is the garbled phenomenon caused by system resources, which is mainly caused by a serious shortage of system resources. The solution is to restart the computer, open the garbled document, garbled disappear. However, it should be noted that before restarting your computer, be sure to save the edited document, otherwise your results will be lost!

The second reason is that the garbled characters caused by fonts (fonts) appear at the time of file exchange. When a computer's PageMaker file is retrieved by another computer, some fonts applied in the original PageMaker are not installed. The solution is to install the desired font firstly. Second, when the "PANOSE Font Matching Result" dialog box appears in the open document, select a font whose font is similar to the temporary replacement.

The third is the garbled characters caused by Word graphics. This is the most common situation. Since Word contains pictures, after PageMaker is cut and scraped, PageMaker's pages increase wildly, and each page is full of strange characters. It can be solved by the following steps:

The first step: In Word, delete the original graphic image, including shading, save as a TXT file.

Step 2: Copy the typesetting content in PageMaker.

Step 3: Open PageMaker, create a new document, and select the "Edit Article" command under the "Edit" menu. In the window, press the "Ctrl+V" compound key to paste the text.

Step 4: Place the article. The fourth is garbled punctuation. The solution is: try to minimize the page without affecting reading, and then search for suspicious passages.