Currently, there are two ways to generate PDF files: 1) by printing, 2) by printing, 3) by printing.

By carrying out the printing can be generated PDF. that is to say, we through such a network of virtual PDF printer will be the application of the system program text and graphics and other commands (such as Windows under the GDI command,pdf to word converter offline software free download full version MAC under the Quick-Draw commands, etc.) converted to PDF commands, and will be preserved in some of the corresponding PDF file, as shown in Figure III. After the installation of AdobeAcrobat PDFWriter, from the theoretical development of all as long as the application of different printing technology functions as long as the research program, should be able to print the contents of the content to be stored in the PDF file. However, the current generation as well as the Chinese PDF file management still requires a lot of social issues.

Conversion from PS to PDF. This is another method of generating PDF,word to pdf converter online i love pdf the application will send the printout to the PS file, and then by the Adobe Acrobat Distiller will be converted to PDF.

These two methods of generating PDF have their own advantages and disadvantages. The advantage of print-generated PDF is that it can be tightly integrated with the application. In the user's view, it is directly from the application to generate PDF,merge word documents online i love pdf but the disadvantage is that by the GDI instruction set and Quick-Draw instruction set of the limitations, it is difficult to generate high-precision PDF. however, although the PS to PDF conversion of more than one process, but because of the PS itself has a high-precision description of the ability to generate the PDF can be up to the printing level of quality and accuracy. after the generation of PDF files, the user can use AcrobatReader to read and print, you can also use AcrobatExchange to add a series of interactive attributes for PDF files, such as page thumbnails, hyperlinks, bookmarks (or directory), comments, etc.. Use the tools provided by Adobe to generate PDF, Chinese support has some problems, such as not supporting the download of Chinese fonts, Chinese display is dependent on the operating system and so on.

PDF in the digitization process and prospects for the application

Because PDF has many characteristics suitable for electronic publishing, so it is increasingly used in the modern digital workflow. Among them, the specific application can be divided into three cases: the production of CD-ROM electronic publications, mixed with HTML publishing information, the independent use of PDF to create a home page to publish information. The production of CD-ROM electronic publications with PDF is currently the most widely used situation.

As we now have only a small number of WWW server technology to support PDF, so you can study the use of PDF to create a separate home page and publish relevant information in the coming period of time is not quite understand the reality. But there have been a large number of WWW sites began to design the use of HTML and PDF mixed approach to data and information platform for the release of the way, such as embedded in the framework of the HTML PDF, the two can be realized between the seamless integration. For the community to support PDF of the WWW site, the user from above to read PDF and HTML is equivalent, but also can come to read while passing. And from those who do not support PDF on the WWW site to read PDF, it can only wait for the PDF file can not be completely downloaded to the development of local life, the user can continue to analyze their own reading. At present, there have been a large number of electronic control magazines have begun to mainly use PDF to the Internet distribution.

Now, Agfa-Gevaert launched the third generation of JDF-compatible APOGEEPDF workflow solution to further extend and simplify the entire workflow. It is more automated, controllable, open and extensible, and easier to use. the APOGEEPDF solution supports both page-based workflows and full-size workflows, making work more flexible and catering to different work styles and production needs, truly taking automation to a new level. With the combination of PDF and JDF, users can begin to integrate business and production processes for true workflow integration and end-to-end automation. JDF is an open, extensible, XML-based job definition format that provides a flexible and comprehensive solution for the entire workflow from customer reception to final delivery, which is more complete and efficient than any previous form of work! PDF.

The emergence of PDF on the traditional digital printing process has had a huge impact. The traditional PS-centric printing will face the challenge of PDF, the future of PDF RIP (RasterImage processor) will gradually replace the PS RIP, the real realization of "a production, multiple use" concept.