PDF document difference comparison method and related device

By calculating the evaluation difficulty and importance score of the content block of PDF document, determining the order of comparison and algorithm, efficient and accurate differential comparison of different versions of PDF documents is achieved, and the problems of slow comparison speed and high false alarm rate in the prior art are solved.

CN119720992APending Publication Date: 2025-03-28小芒电子商务有限责任公司
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Patent Information

Application Number
CN202411845096.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

During the process of PDF document revision and version iteration, how to quickly and accurately identify the differences between different versions of PDF documents is an urgent technical problem.

Method used

By obtaining the content block collection of different versions of PDF documents, the evaluation difficulty score and importance score of each content block are calculated. Based on these scores, the comparison order and comparison algorithm are obtained, and the corresponding algorithm is used to perform differential comparisons in the order of comparison, and the difference comparison results of each content block are obtained.

Benefits of technology

It improves the efficiency and accuracy of different versions of PDF documents, can identify differences between documents more quickly, reduce false alarm rates, and improves the efficiency and accuracy of document editing, reviewing and version control.

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Abstract

The invention discloses a PDF document difference comparison method and a related device, and relates to the technical field of document processing, and the method comprises the following steps: obtaining a content block set of a first PDF document and a second PDF document to be compared; and for the target PDF document, respectively calculating an evaluation difficulty score and an importance score of each content block in the content block set. And obtaining a comparison sequence based on the evaluation difficulty score and the importance score of each content block. And obtaining a comparison algorithm of each content block based on the type of each content block. And according to a comparison sequence, aiming at each first content block of the first PDF document, using a corresponding comparison algorithm to perform difference comparison on the first content block and a second content block in the second PDF document to obtain a difference comparison result of each first content block. According to the scheme, the difference comparison efficiency and accuracy of the PDF documents of different versions can be improved.
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