Application of PDF format in the publishing and printing industry

Hongyingfeng software Co., Ltd. has many years of history in the analysis and research of PDF format. Existing products include reading, writing, browsing, and digital encryption of PDF files. Powerful technology, providing users with different application solutions. At the same time, we are constantly tracking advanced technologies and investing in R & D in the PDF/X, PDF/a, and PDF editing fields, hoping to lead the industry. Due to the wide use of PDF in the printing industry, combined with the previous development project experience, we propose the following application solutions.

 

Digital Processing
Electronic paper materials. Convert the scanned TIFF files into PDF files in batches and then process them. Or, it can be directly identified and converted to a double-layer PDF using OCR technology.

Resolution reduction
According to the usage of electronic documents, 1016-line PDF files are converted into 600-line and 72-line PDF files at the same time to reduce the file size and speed up network transmission. You can also adjust the resolution as needed.

Adjust margins
The margins of processed PDF files are uniform. However, in actual situations, different typographical requirements have different margins. During processing, the program detects the margins when the margins of the original PDF document are relatively small, and automatically increases the margins to the preset values. If the margins are greater than the preset values, no processing is performed. The preset value can be set by the user in the form of a dialog box.

PDF garbled
PDF garbled characters are displayed normally, but the copied content is garbled. The reason is that the font embedded in the PDF file contains incorrect display information and content. This tool first filters out the embedded font and displays the drawing information of the font in the window. Then, the user enters the correct text directly from the keyboard. In this way, the font display information corresponds to the content correctly. After such processing, the program generates a new pdf file to correct the error content. The new pdf file will not be garbled during copying.

Color Management
The color publishing print is rich in color and has a strong sense of excitement. How to completely restore the colors that human eyes can recognize on computers has always plagued the technical world. At present, the international use of PDF/x standards to manage the color space, the most widely used in the publishing and printing industry is PDF/X-1a, PDF/X-3, PDF/X-4 standards. The Color Space supported by each printing device is different. Through the Color Management System, the computer conducts a comparative investigation before the output, so that the current printing device can restore the color to the maximum extent. As the company has already invested in research and development in this aspect, the color configuration of different printing devices is also very clear, so it can meet the needs of the publishing and printing industry in this aspect, and develop the corresponding products.

Electronic Document Archiving
All publications of each Publishing House and example year must be archived. If the storage time of the paper medium is long, it will be damaged; the film medium will become aging after a long time; the electronic medium may be unable to open because the application cannot be found in a shorter time. In order to solve the problem of long-term preservation, PDF/A standards have been issued internationally. The publishing industry is widely used in PDF/A1A, and PDF/A-1b (non-mandatory) standards. This standard allows the retention period of electronic media to be more than 50 years. Because you have mastered the conversion technology of PDF/A, you can develop it based on the needs of the publishing and printing industry.