Digital Imposition Software Analysis

In the printing production process, each printed web is composed of a combination of multiple finished pages. Therefore, the work of assembling a single finished page into a printed web is extremely important and complex. It is a constraint on the efficiency of printing production. bottleneck.

At present, in the prepress digital workflow, simplifying the traditional process flow and increasing the degree of automation to replace more manually-operated digital imposition software can reduce the requirements for operators and avoid the traditional manual imposition of labor intensity and low production efficiency. Mistakes and other shortcomings. Therefore, digital imposition software is not only a tool for digital imposition of books, magazines, and newspapers, but also an indispensable process link in the computer-to-platemaking process.

At present, digital imposition software can be divided into two categories: one is imposition software with PS and PDF as imposition elements; the other is imposition software with 1-bit TIFF as imposition element. In the Chinese environment, 1-bit TIFF is more stable than PS or PDF. It provides the same reliability as film output, does not change the contents of files, and can be easily stored on CD-ROMs, tapes, or hard disks. China and long-distance transmission. Therefore, 1-bit TIFF can be referred to as "digital film."

Impos2000 is a full-featured and easy-to-use ROP post-slotting software, which is mainly used for book imposition work, continuous linking and printing, improving the utilization of the film, and the layout work of spot color pages. Impos2000 processed the files after the RIP before the imposition to generate low-resolution files for imposition preview and operation, which greatly improved the work efficiency. During the entire imposition operation, the user can see the color picture of each page, and can conveniently perform preview inspection of each sheet while quickly placing the page.

Impos2000 is composed of client, server application software and plug-in. The client is used to create and share a print template, and places the RIP's page in the corresponding place in the template. In the saddle-stitching and bookbinding modes, the imposition of roll-over printing (front and back flip) and self-turn printing (left and right flip) is supported. It can provide all the marks such as boundary lines, cutting lines, folding lines and register lines of film and printing plates. Pages can be placed individually or in batches, and also have automatic or manual creep control functions. When placed, a full-color page snapshot is used so that the operator can be sure that the page being placed is correct. At any moment before the exposure, one or more page corrections can be made very easily. Even if an error is found after exposure, only the error page needs to be modified without reinterpreting and exposing the entire layout file.

In addition to spelling books and books, Impos2000 can also perform manual single-image continuous drying, manual multiple-image continuous drying, full-page image placement, and different color separation versions on the same film, making the entire large-scale work. The version can be fully utilized.

For full-page imposition work, after the imposition is completed, a PDF proofing file can also be generated page by page for the user to make a final confirmation. The proofing file is generated from a page that has been RIPed and screened. The 90° rotation function can be used in the client operation, and the page can be rotated 90° left or right as required. This function can save film in the free layout mode.

The Impos2000 server can output 1-bit TIFF, DCS 2.0, or Contone TIFF of the assembled page to other output devices, and can also output directly to the imagesetter or CTP using high resolution outlets. The server can perform the output according to the width of the output device. ° and 270° rotation. Impos2000 has page independent processing capabilities, and each layout on the printed page can have different dot shapes and screening methods to meet the requirements of the print job. Impos2000 digital imposition software can form a buffer period between other systems and output devices, and can perform post-RIP inspection and layout planning.

In short, Impos2000 digital imposition software can make the process more flexible, ensure the safety and efficiency of the digital process, improve the speed and quality of the plate making, save time, and simplify the method of operation.