Acrobat creates PDF/X files to become typographic orientation

PDF is a universal file format that preserves the font, image, graphics, and layout settings of any source document, regardless of the application and platform used to create the source document. PDF files for different purposes may contain the same information. PDF has been widely developed and applied in various fields such as office, printing, and network publishing due to its diversity.

There is a gap between ordinary PDF and printing PDF. Only the PDF/X-1 and PDF/X-3 formats are the file formats available for printing. PDF files can be created in a variety of ways. There are differences in the PDF files generated by different ways of creating. You can choose different ways of creating according to different needs. Different creation methods produce different error messages when preflighting.

For example, create a PDF file with a printer. The PDF printer is a simulated "print" driver that can be used to easily generate PDF files from the customer's application. Of course, its characteristics are convenient and quick. It is controlled like a Windows virtual printer via a standard interface. The PDF printer invokes the print command in the client application to create a PDF file as a "print" file. In this way, as long as the printable file format can be automatically converted to a PDF file.

Then there is Acrobat Distiller to create a PDF file. Acrobat Distiller is one of the components of Adobe Acrobat. It is a high-end PDF document generator that can be used to create and edit PDF files. It is the most important and reliable tool for converting PS/EPS files into standard PDF files. This is controlled via OLE (object linking and embedding) or Postscript commands. We converted the file of the source program into a PS file, and then output the generated PS file in PDF format by Acrobat Distiller. When creating a PS file, if the source file contains non-conforming criteria (PDF/X-1a:2001, PDF/X-1a:2003, PDF/X-3:2001, PDF/X-3:2003, etc.) The element will automatically generate an error file when the PS file is generated. We can correct it in the source program based on the error information in the file.

When using Acrobat Distiller to generate PS files, in order to avoid an error situation, you can set an option in Distiller, that is, "When font embedding fails", select "Warning and continue". This way, there is usually no error when generating a PS file. However, this method is not promoted. Because errors that are ignored here are usually present at the time of the preflight. It is equal to laying a hidden danger to the work behind. Therefore, try to filter out errors in the source program.

From the point of view of the quality of the PDF created, the PDF files created by Acrobat Distiller are superior to the PDF files created by several other methods.

Let's compare the other creation method: Create it with PDFMaker. For office PDF files can be created directly in the Word application. This process is done by PDFMaker. This method can guarantee the integrity of the source file. Although PDF files and Acrobat Distiller can also directly create files from source files as PDF files, other advanced features in PDFMaker such as tags, hyperlinks, and comments cannot be completely preserved.

To create a PDF file suitable for printing, it is necessary to make the PDF fit the PDF/X standard. PDF/X is a file format application standard that defines many of the necessary contents for a properly printed document. PDF/X has evolved from the PDF file format and is developed for the stability of printouts. It does some special restrictions on PDF documents. For example, the PDF/X-1 standard requires that PDF documents contain all source files and fonts, support limited compression capabilities, and ignore non-printing information (such as audio and video) in the document; it limits the color of the image. The mode can only be CMYK mode, grayscale mode, and spot color mode; at the same time, the file format requires all fonts to be embedded. If a layout file contains an RGB image, the layout file will not be saved in the PDF/X-1 format. That is, the user will automatically generate an error when generating the PDF/X file and terminate PDF/X. The generation of the file.

PDF/X-3 is an important output format of the PDF/X standard. It is similar to PDF/X-1 and is also aimed at the field of book publishing and advertising printing, but it is not exactly the same as PDF/X-1. The document standard is not limited to CMYK and spot color space. It supports LAB color space and supports ICC color color management technology. In other words, the PDF/X-3 file standard is more applicable to the newer print color management workflow than PDF/X-1.

For the various limitations of printing on PDF, we need to find out the gap between ordinary PDF and the PDF required for printing, and propose corresponding solutions. To produce a PDF file that meets the standard is achieved through prepress preflight items. Different standards have different requirements for pre-check items. We can solve them in various ways according to different requirements. For example, we can solve the application in the beginning of PDF creation, or you can solve it in Acrobat after generating the PDF file. If you create a PDF file by creating a PDF file from a PDF file, we can solve it in the Acrobat Distiller software.