The Pre-press Graphic Prepress Output Frequently Asked Questions (1)

As we all know, due to factors such as compatibility and compatibility between software and software commonly used in pre-press graphics and text processing or between software, the output film can not reach the desired effect, thus causing manpower in the production process. Material resources and other waste. It is the main content of this paper that exactly what factors in the output process will cause the output to fail or fail to meet the requirements.

In the pre-press links, the most important is the correct output of four-color film film, its quality is related to the final effect of the print, so the trend of the printing industry is: a good design and production staff will only create and design Is not enough, the key is to have a series of output knowledge to avoid the waste of human and material resources due to the operator's operational problems or the output's mistakes in the production process. This phenomenon is common in production practice. We often encounter such problems in practical work. An advertisement that is eager to look at the next day is too big to be displayed today. The request resulted in the suspension of production in the following series of links, causing irreparable losses to customers and printing plants. Therefore, starting from the actual production, I summed up some of the problems that often arise in the output process and solutions.

First, output traps and production skills (1) Pagemaker

About page settings. After the document is created, if you use the software default cutting line and page information settings during output, the position of the cutting line is determined according to the “paper size” in the page settings. If the paper size is too small, it may make the document The content cannot be completely exported to the film.

About text. The first is to be compatible with the fonts owned by the output center, that is, the output center has all the fonts contained in the document.

Jumping words have spaces in the text, which can easily cause jumping. Therefore, in the text layout for the space, can be solved as follows: 1. Truncate the text from spaces and avoid using spaces. 2. Use the Tab/Indent feature to replace spaces with the Tab key. 3. In the case of text typesetting, there may be cases where simple and complex texts are mixed and the word skipping is easily caused. In this case, only the method of truncating the text is used to solve the problem. 4. When replacing a font, replacing the same font between different characters can easily cause jumping.

Bold characters can be bold, but not bold. Otherwise it will cause ambiguity.
The shadow effect of the font in the Pagemaker font differs greatly from the actual output on the display, and when the black overprint is selected, the shaded part of the font will penetrate the bottom.

In the Pagemaker document, if you place a bitmap in RGB mode. Since ordinary four-color printing uses CMYK four inks to print out different colors, RGB mode and CMYK have different description methods for colors, so RGB images have large differences in color and display after printing, and even color separation may occur.

It should be noted here that in Photoshop 4.0 and below, if there are extra Channels, it will lead to output errors. However, in Photoshop 5.0, when determining the use of spot colors, the corresponding Channel is defined as "Spot Color."

Bitmap file format

1. TIFF
In a Mac, if an error occurs when placing a TIFF image in Pagermaker 5.0, in the "control pannel", "Macintosh easy open" can be closed.

When you place a Tiff format image with a spot color channel in Photoshop 5.0 into Pagemaker, the corresponding spot color channel cannot be placed in it, so you can save the image in DCS 2.0 format.

Place a Tiff map that contains a Path, such as deleting the Path when looking at the map. After the output, there will be redundant image sections.

2. EPS document

When Pagemaker stores an EPS file, if "Include HalfTore Screen" is selected, the software uses Pagemaker's default printing accuracy (133Lpi) output for this image, thus making the image thicker after output.

Problems with color names. In Pagemaker, when you set a color, you must name the color, but if the objects imported or copied into the Pagemaker file contain colors with the same name in the document, those colors will be replaced by the original colors.

Overprint. In Pagemaker 5.0, the software automatically sets the 100% black font to overprint when it is output, but this adjustment works for lines and fills in the PM 5.0 graphics and image files. You can redefine the color (K100), or set the overlay in the graphics software and place it again.

In Pagemaker, when the color is set to be overprinted, due to the different ink infiltration degree, a “bottom-through” situation may occur when the object area set as the overprint is large.

Compatibility between PC and Mac Pagemaker

When the PM files of different systems are started on the PC and Mac platforms, the font problem is encountered first because PC and Mac versions do not have the same description of the kerning and line spacing of the fonts, so it is easy to cause jumping. Second, Pagemaker on the PC platform supports the placement of ConelDraw 3.0-5.0 files, which are not supported on the MAC platform.

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