| Prepress |
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| CATEGORIES ABOUT PREPRESS | |
| graphic design | |
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During the 1980s and 1990s, electronic publishing techniques largely supplanted the traditional processes, and by the early 2000s the word ''prepress'' became almost synonymous with '' Digital Prepress .'' The processes of Copyediting , Markup , Proofreading , Typesetting of text, photography of artwork, retouching, Screening (of continuous-tone images such as photographs), trapping (also referred to as Spreading And Choking ), page layout, page assembly ("stripping"), Imposition (combining of many pages into a single signature form), and Photomechanics (exposure and processing of a photomechanical printing plate) are all considered part of prepress, and are largely common to traditional and digital prepress. Some prepress processes specific to digital workflows include Preflighting (verifying that all files needed are present and valid), Color Management , and RIPping . The specific processes used in a particular printing application are called Workflows and, of course, vary, depending on the printing process (e.g. letterpress, offset, digital printing), the final product (books, newspapers, product packaging), and on choices of technology. Before Computer layout and design, the prepress stage used a large format Camera to make plate or bromide of the completed text and images. Computers now rasterise the completed layout with either Laser s or Thermal Diode s to a plate in a Platesetter , this is referred to as Computer To Plate (CtP). For several years up to now, the CTP ( computer to plate ) prepress system was largely used in Printing Houses. The CTP system developments were based on the advances of Information Technology, Material Technology and the Laser Technology. With the CTP system you can speed up the overall printing process. The CTP process involves inputting the following formated files: PDF, PS, TIFF, and then outputting a plate. After that, the completed plate is mounted in the Printing Press . Recent moves within the Prepress market have meant that many publishers - particularly in the magazine sector - have begun looking at the possability of handling many of the prepress services in house. This recent move has also meant that many existing prepress companies have begun building and developing systems and workflows that provide what is being called, virtual in house production systems or VIP systems. These systems allow publishers to take on as much or as little or as much of the prepress process as they desire without the need for extra staff, or expensive hardware and software. EXTERNAL LINKS
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