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To make the PDF file become into an industrial standard format, and there are many of the work to be improved, but it will really ensure typesetting information accurately grid of processing, can guarantee that code file compact concise. Current PDF may also fail to provide full color management processes, but in the future of newspaper printing PDF will play a more important role.

PDF English full name is the (Portable Document Format, Portable Document Format). It is in its Adobe PostScript language on the basis of the development of a standard of file system. The PDF advantage is that it contains font, font size and format and the use of color and graphics, image information in a file, and the format files can also contain hyperlinks, voice and the dynamic image file information such as specialty, integration and safety reliability are higher. The PDF file another remarkable characteristics is the document itself can do not depend on the formation of the operating system it language and font, and display device.

Along with the CTP and digital process technology development, the direct plate-making technology in international has been the application of large area; promote the quality ascension of the publications printing. Press provides electronic documents, printing enterprise through electronic document handling, form the printing process requirements of the big version. Also, fast offer digital proofing, to press the contents proofreading, or through the network technology to realize the online remote proofreading, confirmed that the content of the final. Through the CTP and the application of digital process PDF, fully realize electronic document handling, ensure accurate control of the network printing, improve print image levels, utmost ground keep the original image quality, ensure the correctness of the text, reduce the cost of proofreading publications, and comprehensively promote printing quality.

Adobe PDF documents introduced is constructed in the PostScript technology foundation. PostScript language of information work in a file definition placed among the interpreter when processing PostScript work must have the whole PS document includes page information to explain, if want to deal with the document a page, also want to explain the whole all information. And PDF and PS different a remarkable characteristic is “page independence”. In a large file containing multiple pages, alone could deal with any one of the page. According to the characteristics of the designed based on a single page RIP system, can through an interpreter to handle a PDF file many pages of a few pages. But now the RIP system way of working is even to explain PS file a page, will make the entire file through the RIP processing.

When mentioning comprehensive digital, to press is concerned, you can consider to electronic documents standardized problem. PDF has become the industry standard file format, PDF files because graphic embedded, read and check the convenient fast, the output error low risk, and PDF files capacity small, convenient transmission, and it can fully meet the requirements of the printing, and through the PDF file application of electronic files ascension security, through the core technology of the founder can realize the comprehensive PDF encryption technology, PDF file once was encrypted, conventional condition be short of one cannot, meet the requirements of the printing, but also effectively ensure the electronic file of the copyright. Because CTP and PDF digital process in domestic has gained popularity application, in the next few years, the application of the film will be withdrawn from the market, develop electronic files output management, therefore, press or magazine should pay full attention to the printing and publishing industry technology revolution, make publishing and printing related departments form better communication channels. From there the PDF to customers the most common problem is the word no embedded, drawing file resolution is too low, didn’t make blood or use the wrong color space. When we need to convert PDF to other format on Mac, we can use PDF converter Mac software.

However, like electronic pre-printing work just started to develop, the real PDF printing used in publishing industry, some problems still happen. How many high quality prints in PDF format printed? PDF documents and application in the printing production has some different? PDF file compression to meet industry really, merger, cross-platform, real-time seal request? If PDF also can’t solve these problems, but before printing, printing in the cause problems, that really takes it to do what? Survey show that five big advantages of PDF use: cross-platform less problems, the file is small; system processing speed is fast, but the soft proofing and convenient preview. On the contrary, 88% of the respondents said a PDF of the biggest problems for the customer the archives didn’t do well, even c

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