Specification of PDF Page Structure to Improve the Efficiency of Layout

Specification of PDF Page Structure to Improve the Efficiency of Layout

1. Specification PDF page design

Develop a standard homework manual on PDF page design, train employees, communicate with customers, and hope that employees and customers can design PDF pages in accordance with standardized requirements. There are:

1 In InDesign and Illustrator software, create page frames such as MediaBox, TrimBox, and BleedBox for PDF pages.

2 Set the bleeding edge for the PDF page when setting the page properties, and unify the bleeding size.

2. Use Acrobat and Pitstop software specification PDF page processing

For non-standard PDF pages, use Acrobat and Pitstop software to process them before the imposition. These are:

1 Pages for three-sided bleeding In Acrobat, the page is treated as four-sided bleeding by increasing the page size.

2 For cross-page documents, the page should be split into a single page file before the layout job.

3 In the Pitstop, add page frames such as MediaBox, TrimBox, and BleedBox to the page. In this way, the software can automatically identify the page structure frame and automatically locate it during the layout.

3. Use of standard layout software

For different PDF pages, a unified PDF page positioning template is set up in the imposition software to form a job specification so that different operators have the same operation method.

In the fourth step, the spacer pin is fixed to the rainbow printing device with the help of the pin alignment system. This ensures that even if the customer has to use multiple support bars to repeat the work, there is no problem and 100% accuracy can be ensured. Because there is no need to make adjustments, it also saves time. In the fifth step, there must be a good seal between the divider and the divider, and between the divider and the squeegee and the ink fountain roller. It is worth mentioning that we use a special kind of silicon sealing material. So there is no adjustment screw on the divider - it does not need any tools, just easy to insert - this can save a lot of time, no other connection or adjustment work. In the sixth step, the degree of tumbling of the ink roller must be reduced. This task is to be done on the side of the transmission of the printing machine - accurate, stepless, reproducible and fast. If necessary, ink supply unit separation and short-path ink supply modes can also be used.

If there is no need for waterless or dry offset printing, the damper system's bridge roller must be replaced with a non-shake type. After the ink key setting is complete, the press is ready. It takes only 5-10 minutes for the operator to prepare the rainbow printing system in place. The rainbow printing device is designed and developed according to our customers' special needs. In the production of long-lived jobs, for example, over 10,000 impressions, we recommend the use of a special ink fountain roller with a circumferential groove to prevent ink bleeding.

Rainbow printing technology is now widely used in Heidelberg Speedmaster SM52, SM74, XL75, CD102 and SM102 series products. In 2007, the world’s largest banknote printing company, China Banknote Printing and Coinage Corporation, installed 12 Heidelberg Speedmaster CD102 presses at its six branches in the mainland. All of these printing machines are equipped with a rainbow printing system. . In Europe and the United States, manufacturers specializing in security printing are also using Heidelberg's rainbow printing technology. In July 2010, the 150th Heidelberg printing unit equipped with a rainbow device settled in a special security printing company in Russia with the Speedmaster SM102 six-color UV offset press. A Dutch printing plant also recently started using their first Speedmaster XL105 offset press equipped with a rainbow printing system.