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File compression method and apparatus, electronic device and readable storage medium

A technology of file compression and compression algorithm, applied in electrical components, code conversion, etc., can solve the problem that the compression rate of PDF files cannot be effectively improved

Pending Publication Date: 2020-05-08
万兴科技集团(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a file compression method, device, electronic equipment and readable storage medium to improve the problem that the compression rate of PDF files cannot be effectively improved in the prior art

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  • File compression method and apparatus, electronic device and readable storage medium
  • File compression method and apparatus, electronic device and readable storage medium
  • File compression method and apparatus, electronic device and readable storage medium

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0024] It should be noted that like numerals and lett...

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Abstract

The application provides a file compression method and apparatus, an electronic device and a readable storage medium, and relates to the technical field of data compression. The method comprises the steps of obtaining a content stream of a portable file format PDF file; analyzing the content stream to obtain at least one graphic object; obtaining all coordinate point data included in at least onetarget graphic object in the at least one graphic object; compressing the coordinate point data by adopting an offset compression algorithm to obtain compressed coordinate point data; forming a compressed PDF file according to the compressed coordinate point data. According to the method, offset compression calculation is carried out based on the coordinate point data in the image object, the coordinate point data in the PDF file can be fully compressed, the compressed PDF file is obtained according to the compressed coordinate point data, and the compression rate can be effectively improved through the compression process.

Description

technical field [0001] The present application relates to the technical field of data compression, in particular, to a file compression method, device, electronic equipment and readable storage medium. Background technique [0002] Portable Document Format (PDF) is an electronic document format. PDF files can encapsulate text, fonts, formats, colors, and graphic images independent of devices and resolutions in one file. This format file can also contain electronic information such as hypertext links, sounds, and dynamic images. And this format It supports extra-long files, and its integration and security reliability are high. In order to make the process of PDF file storage and transmission more convenient, the industry standard compression algorithm is usually used to compress the content stream of PDF files, but this method cannot effectively improve Compression rate for compressing PDF files. Contents of the invention [0003] The purpose of the embodiments of the pr...

Claims

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Application Information

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IPC IPC(8): H03M7/30
CPCH03M7/3086H03M7/70
Inventor 许德峰
Owner 万兴科技集团(深圳)有限公司
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