Method for controlling restricted access of PDF file

Abstract

The invention relates to the field of computer software application, and provides a method for controlling restricted access of a PDF file. According to the method, a network client side, a network server side and a permission control module for distributing a plurality of different permissions are involved; in the network client side, the PDF file which needs permission setting is uploaded to thenetwork server side for permission setting; then the network client side obtains the PDF file after the completion of permission setting, wherein the network client side comprises a browser used forfile control personnel to obtain PDF files; the permission control module receives the PDF file after the completion of permission setting and then distributes different permissions to different access addresses of the browser, wherein the PDF file is sent from the network server side. According to the method for controlling the restricted access of the PDF file, different permissions are distributed through the permission control module, and a series of problems are solved that the previous efficiency of sending PDF files is low, different types of user permissions are difficult to control, and version errors easily occur.

Description

technical field [0001] The invention relates to the field of computer software applications, in particular to a method for controlling restricted access to PDF files. Background technique [0002] The full name of PDF is Portable Document Format, translated as Portable Document Format, which is an electronic file format. It has many advantages that other electronic document formats cannot match. For example, the file format has nothing to do with the operating system platform, that is, PDF files are common in both Windows and Unix operating systems. This feature makes it an ideal document format for electronic document distribution and digital information dissemination on the Internet. [0003] The limited control of PDF files is generally implemented by file encryption. The encrypted file can be authorized with one code per machine, and copying and printing are prohibited. To implement it, it is necessary to set a password for each PDF file, which is bound to the user's c...

AI Technical Summary

Problems solved by technology

To implement it, it is necessary to set a password for each PDF file. The password is bound to the user's computer hardware, which is complicated to set and inconvenient to operate.

Therefore, the efficiency of issuing PDF files cannot be guaranteed, and the document control personnel are often overwhelmed, but they cannot ensure that the technical personnel in each process use the correct version of the file, which directly affects the product quality indicators

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