The scope of extension of PDF technology (below)
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(1) Web Publishing
There have been ways to order publications using the Internet, so that the application of PDF data can be considered to introduce the content of the publication and the ease of reading. Usually, when you buy a book in a bookstore, you can always flip through the contents of the book and buy it. Just like this, you can read the content on the Internet, then buy the book you want from the bookstore, or rely on the letter. For specific fields such as professional books or publications for small heads, it is very difficult to place them all in the bookstore for various reasons. The effective way to think of it is not to say that all publications are Effective, but as long as the contents of the book are published on the Internet, the same effect as in the bookstore is obtained.
Not only to order publications, but to convert the published content into PDF data and then sell it as digital data, this is equivalent to completing the way the reader can get the book at any time. It is easier for people in the city and suburbs to buy publications from bookstores, but in places far from the city, considering that there are no bookstores in many places, residents of such areas always want to find some way to purchase publications.
Not only the bound paper publications, but also the publishing form of the part that you want to buy, has been realized by the Internet. When the data format is PDF, you can complete the same genre as a paper publication to display images and output high-quality prints.
(2) Digital map
As one of the specialties of PDF data, it is a very high-quality advantage when it is displayed on the display screen. One of the areas where this feature is fully utilized is the field of maps.
The map has various maps of detailed contents such as the simple guide-like illustration level to the approximate publication. The more detailed the content, the more you can use the above features, which is the use of PDF to promote the application of digital maps. There have been examples of selling a map published as a book to PDF data. Including road maps for railways and highways, the addition of newly opened subways and the relocation of famous buildings, it is not difficult to use the Internet.
The content recorded on the map is actually changing almost every day. As a map of the publication, it is good from its convenience and the nature of the book. However, from the perspective of real-time reflection of the latest situation, the way to provide maps using the Internet is quite advantageous.
5. Print production process and PDF
PDF data can also be applied during the production of printed matter. According to the combination of PDF data and the Internet, it is possible to make joint editing and production between paperless proofing work and remote location. In addition, as with current PostScript, the gradual application of PDF in platemaking will become a reality.
(1) Application in editing proofing work
In the DTP operation carried out by the printing house or the editorial department, the proofs are always output in color proofs and sent to the publishing house and other customers for proofing work. If this is changed to the way of sending the PDF data, the proofing work to be confirmed can be performed on the display screen and printer in the client unit. That is to say, the work of proofing output and transmission can be omitted, and it is not necessary to provide special software such as DTP software and a high-priced color printer. Because the same quality as the printing effect cannot be obtained, the final review is required, but the comprehensive layout and text verification is sufficient.
In addition, co-editing and production with the remote can also be considered. If you share the original manuscripts and DTP operations such as texts, images, and illustrations in the same factory, you can use the Internet to help each other in the form of PDF data. Co-editing and production. This refers not only to the joint editing work between the publishers, but also between the publisher and the printing house, and between the printers.
(2) Application in plate making engineering
The current PDF data is that the text and graphic data can achieve the same quality as the PS data, and the photo image is compressed because it is compressed when it is compiled. In the existing engineering using PS data, there is also low-resolution image data used for DTP operations, which is exchanged with high-resolution data in the plate-making process, but in terms of repairing, the two are almost similar and indistinguishable. . If there is an Open System Interconnection (OPI) that is compatible with PDF in the future, PDF data can be used in the plate making process.
What has been said above is to make it impossible to operate an operation centered on existing PS data. For example, in the stage of making a plate-making film, or in the color-correcting stage, it is always the case that it needs to be corrected anyway before printing. In the work engineering using PS data, due to the structure of the PS data, it is necessary to reprocess the entire PS file (that is, RIP reprocessing for the entire page), but if it is PDF data, because each page is completely independent, Simply swap the entire page of the corrected object.
Because PostScript (PS) is a widely used form of programming language, it is a structure that cannot be processed without interpreting the entire data. For example, the initially set graphics processing method will affect the image of the final page.
That is to say, in terms of PS data, each page should be processed independently according to the point of its format. In other words, you cannot handle a specific page alone. In contrast, PDF data is an independent structure in page units. Even a file composed of tens of pages, each page becomes an independent data structure, so a page-based processing method is possible, and thus a specific page can be output.
In addition, the RIP processing of PDF's single-page independence has been published, and the parallel format of the structure, PostScript Extreme, has been published, and the RIP operating system for implementing multiple processing methods has also been introduced. It is very effective to reduce the output processing load by performing multi-processing RIP that can be parallelized while performing job control while transferring job data to PDF data that is independent of page units.
6. On-demand printing and PDF
The technical content of on-demand printing refers to a printing method that provides services for "when needed", "needed content", and "quantity required". In addition, the environment for printing at the "required location" has been completed. The data is sent to a designated location via the Internet and outputted by a small-scale printing device, which is called distribution printing (or network printing). In this distribution printing, PDF will be more effectively applied.
There is also the use of data compression to reduce the weight, which is very beneficial for the transmission of data on the Internet, and because there is no need to choose a work terminal, which greatly eases the requirements for printing environmental conditions.
(1) It is not distributed after printing, but is printed after distribution.
In the past, the internal materials of the company or the prints inside the company were always output by printers, etc., and the required number of copies were distributed to the required departments. In the future, this method will be changed, and the PDF data can be sent to the distribution location first, and the required number of copies can be printed at the place, that is, the form of distributing the printed materials from the past. , the conversion to the first PDF data distribution, in the form of the need to print out.
For manufacturers that need to provide products overseas, they need to produce product manuals in various languages and supply them to the country. This kind of product manual has been printed by the manufacturer. It is generally used in the domestic DTP to arrange manuals in various languages, and the data is distributed to overseas locations in PDF data to achieve local printing. This is much better than saving money and reducing costs in the case of sending it after printing in China. If you need to revise the content, you only need to replace the revision before printing locally.
This form is effective not only for overseas locations, but also at home, for example, as a form of distribution between a head office and a branch or a business office.
(2) Distribution of Sports Express
The newspaper used the Internet to send newsletters for sports events, and the PDF data has been applied as described above. In the past many sports games, many newspapers have launched various activities on the Internet to send messages and distribute paper expresses. Among them, as the most advanced example, the big newspaper effectively applied the distribution and printing of PDF data, and distributed the color number of the paper media. The layout of the data can be done at the head office, and the print distribution can be done locally, that is, relying on the combination of the Internet and PDF data and color copiers. The method is to convert the DTP-organized external report in the head office into PDF data, distribute it locally in the game by means of the Internet, and use the local color copier as the printing machine to distribute the output to the pedestrians on the spot. This can be done every day during the game. do.
Of course, without PDF data, with PS data, photos may be printed more clearly, without the use of color copiers, the use of the corresponding press will get high-quality printing. However, it is the meaning of delivering data without increasing the load on the communication line and achieving high-quality reproduction and output as much as possible. It is quite possible that this form will be a typical form of distribution printing in the future.
Word processors and DTPs are no longer a simple production tool for shortening the production of documents and saving money, and have become an effective means of promoting digitalization. For the printing industry with digital technical intelligence, it is really necessary to effectively apply the new weapon of PDF and conduct business activities extensively.