The Impact of Portable Document Formats on Web Publishing

Third, the network publishing format

Web publishing can be divided into HTML and PDF according to its characteristics and commonness.

(a), HTML

1.CGI/ASP

CGI full name is Common Gateway Interface; common tunnel interface, and the description language of the server side, it is the same type of thing as the client's description language, indicating that the execution environment is different, it is working on the server side, and is sent via the server's translation. Dynamic HTML file to the client. The general description language (Javascript or VBscript) is the transliteration of the program code to the client via the browser.

ASP is named as Active Sever Page. Servo-side dynamic webpages are similar to CGI in that they can be installed by WebSim (ActiveX scripting Host). Hosts can then call Engine to execute scripts. Active Sever Page is fully embedded in HTML and is described using (Javascript or VBscript).

The biggest function of CGI/ASP is to connect to the database. That is, each time a command is sent to the server via the browser, the database is queried in the server language, and the result is compiled into HTML and sent to the browser. In this way, dynamic results will be generated for web pages, which will vary with the update of the database source. It is not necessary to create web page management difficulties by newly editing HTML in order to update data.

2.JAVA

JAVA is created by the United States SUN Microsystems, is an object-oriented (Object-Oriented) program similar to C + +, but compared to C + + is simple, and the biggest feature of JAVA is cross-platform execution, regardless of SUN, WINDOWS, Macintosh, OS/2, Unix, and even electronics are all executable. In the network, JAVA is the implementation of JAVA imported from the browser through HTML. It is usually executed through the JAVA Virtual Machine program. Since it must be converted into the machine code before execution, poor performance is its disadvantage. .

3. Javascript/VBscript

Javascript and VBscript are both types of literal translations. It is a description language used in HTML files. The feature is the direct translation by the client. The use of Javascript/VBscript is used to reduce the burden on the server. Not all commands are Need to be executed on the server side, such as the dynamic effect of the web page, which is suitable for using Javascript/VBscript to be executed by the client.

4.CSS

The CSS full name Cascading Style Sheets is a set of extended standards developed by the W3C Association to fill the gaps in HTML. The function of CSS is to allow HTML to be as diverse as possible. Come here. CSS is currently available in 1.0 and 2.0 versions. Netscape 4.0 and Internet Explorer 4.0 support 1.0 specifications, but the results are not the same. The 2.0 specification is currently supported only by Internet Explorer 5.0 and not yet fully supported.

5.Flash

Flash is developed by Macromedia, and is mainly used to display interactive and multimedia functions on web pages. Since its design is a multimedia program of web pages, there is no problem of layout style under HTML, and the use of vector graphics combined with sound effects Achieve the effect of a multimedia web page. Windows 98 can be executed directly through the browser, you can also use the version after Netscape 4.5, or directly need to obtain pulg-in before the implementation of the release software to show its effect.

(b), PDF

The full name Portable Document Format (PDF) is a portable document that was published by Adobe in 1992. The composition of portable documents is: the first layer contains the text and images of the document, and the second layer contains the synergies, such as Bookmarks, hyperlinks, navigation, etc. The third level includes the basic information of the file and the interactive reference table.

PDF can be opened on any platform just like JAVA. Adobe Acrobat Reader or a browser can be used to read. In the size of the file, the file can be compressed and compressed directly due to the built-in compression function. There are JPEG, CCITT Group3, Group4, ZIP, LZW and so on. PDF uses Postscript language to describe text and graphics. Therefore, there is no problem with layout style. It also supports the implementation of Javascript and digital signing to achieve the principle of confidentiality.

Adobe also publishes the Acrobat 4.0 tool program to create PDF files. It is more particularly capable of connecting to the Internet and making HTML into PDF files. However, it will not work for JAVA and refusal to access web pages. It is effective for English web pages, and the rest will be garbled web pages due to font problems.

HTML and PDF both have different ways of publishing on the Internet. HTML is more suitable for on-line expressions. The CGI/ASP, JAVA, Javascript/VBscript, CSS, and Flash methods used are not required to be connected. A database is a web page that requires the execution of a program to produce an effect. Even if the result of the HTML is stored, it is difficult to ensure that all the parts are actually accessed, and the access denied effect can be generated through commands. Factors indicate that they want to obtain a web page that will inevitably come online.

The PDF is a computer that is transmitted to the client and then read by the Adobe Acrobat Reader. The advantage is that the user does not have to be connected to the network at any time, and the download is completed offline, and the PDF is a file to complete all the effects, not Like the way HTML uses links to capture multiple files, but its entire design is like electronic paper, and there is no way to express the effects of multimedia. Here, you lose the advantages of using electronic products.

Analysis of the situation and situation

Nowadays, the online publishing model has been used on the Internet. It is mainly based on the combination of e-newsletters and websites. In other words, it is mainly based on the way of distribution of HTML, and is basically a free way. In order to survive, online advertising or owner sponsorship is the mainstay.

The emergence of online publishing is not a small shock to existing media, such as major news media: television news, newspapers, and magazines, all of which have set up their own dedicated websites, which are subject to "real-time" impact on the site. There is also a difference in traffic. For example, television news websites, because of the real-time nature of television news is much greater than the website, and television news in addition to the message there are pictures, the overall feeling of sound is more friendly than the computer, and the TV just needs to open to receive, and On the Internet, additional payments are required, and therefore news sites feel worse than TV news. On the other hand, newspapers and magazines' websites have poor real-time performance from one day, one week, to one month. Therefore, the establishment of the website becomes an aid to print media, increasing its timeliness and giving the public the latest information. Can attract the public to browse their website.

Take the introduction of several of the more common web publishing sites in Taiwan:

1. PC HOME Group: Using the website to coordinate with magazines, there are several magazines in itself. There are also about 20 newsletters. Magazines are monthly magazines, while newsletters are published daily. The distribution of magazines is not consistent with the contents of magazines and website newsletters. That is to say, although the names are the same, but they operate with the attitude of two media, it is not purely to electronicize information.

2. Zhongshi Newsletter and United News Service: Zhongshi Newsletter is the website of the China Times, and United News Service is the website of the United Daily News. Both are mainly to provide content electronically, that is to say on the website. The new news we read will be the next day’s news, if not the newspaper’s content of the day. The entire news can basically be seen in the flat media again.

3. SeedLand Newsletter: Its website is digital joint telecom, and its content is launched in cooperation with other industries. The content of the news can be seen in print media, and part of it is only published on the website.

4. Personal e-newsletter: This is one of the main reasons for the number of e-newsletters on the Internet reaching thousands. Although the number is not large, it is difficult to count. There are Guanghua Shopping Center Magazine and Meier Station e-newsletter. It is issued by the staff who set up the website. Its organization is small and the content is mainly based on the aspects that the website personnel are good at. Therefore, its target is a very small number of segments.

肆, conclusions and recommendations

I. Conclusion

The advantages of web publishing can be discovered from the current web publishing patterns:

1. Fast data acquisition: Regardless of whether the data is in Taiwan or in the United States, you only need to access it from the Internet at home.

2. The personalization of publishing: In the past, if the media was flat, it may be necessary to purchase the next publication for a few pages of information. However, in the case of Internet publishing, only the required information is retrieved, and even websites can be You make a tailor-made message.

3. Easy to find information: Whether it is in the Internet database or in existing documents, you can use the more convenient way to find the information you want.

4. Economic scale: If there is a book whose market is only two hundred people, or if the amount of content is not enough to produce a book, then there is no need to worry about expensive printing fees. It can even be achieved by personal publishing methods. .

5. Environmental protection: Reduce the use of ink and paper.

6. Reduced risk: The marketing of new authors does not need to invest large sums of money.

The disadvantages are:

1. Insufficient security: Both the security of transactions and the security of data are serious issues.

2. The issue of intellectual property rights: Although copyright is protected when a work is completed, copying is an easy task if the data is distributed on the Internet. Any dissemination of data is a problem of copyright.

The questions are:

1. Problems with data transmission: Regardless of the size of the data, the lack of bandwidth creates many messages that cannot be delivered quickly.

2. The habit of reading: It takes time for the human eye to shift from reading a printed product to the screen.

3. Portability: Although data is readily available, the computer cannot carry it with you.

4. Fonts: There will be garbled characters in languages ​​that are not supported by browsing computer systems. Internet publishing can only use the fonts that are determined by the computer system and cannot be displayed using other fonts.

Second, the proposal

With the development of broadband networks, data transmission has gradually become available to the public; reading habits can only be changed from personal habits; the problem of portability has been a variety of handheld computers or e-books in R & D , but there are still problems with the comfort that it can give to readers; the problem of fonts is a long-term problem, one of which is to use PDF format, this format can embed fonts in the file