Method for converting PDF (Portable Document Format) file into format data stream file

Abstract

The invention discloses a method for converting a PDF (Portable Document Format) file into a format data stream file. The method comprises the following steps: analyzing a pdf format file; reading the file content of the pdf, analyzing and obtaining the page number of the pdf, distributing a plurality of threads, and concurrently processing and analyzing the content of the pdf; the content of the pdf comprises a basic object, an object attribute and a resource object thereof; various objects of the pdf are processed, coordinates, widths and heights in object attributes are converted, the objects are combined with layout data stream element objects to form layout data stream file objects, and the layout data stream element objects comprise basic objects, drawing parameters, resource reference paths and resource objects; creating a layout data stream file base plate; and filling the layout data stream file object into a layout data stream file bottom plate to form a standard layout data stream file. According to the method disclosed by the invention, the conversion from the pdf file to the original version and the original sample of the layout data stream file is realized, and the method has the advantages that the conversion method is simple, calling is carried out in a reference manner, redundant elements are removed, and the conversion speed of the file is ensured.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method for converting a PDF file into a layout data stream file. Background technique [0002] The PDF format is one of the most popular linear file transfer formats in the world. It is a file format developed by Adobe Systems for file exchange in a manner independent of applications, operating systems, and hardware. It was opened in 2008 as an international standard. However, there are still some problems in PDF technology at present, such as: high technical threshold, complicated editing technology, and inability to dynamically split and merge. [0003] Layout data flow file is a file software under Jiangsu Zhongwei Technology Software System Co., Ltd. Zhongwei Technology has standardized a set of standard document format system, and integrated layout file reading, file and flow data interaction, and form under the user interface. Three major applications for handwritten ...

AI Technical Summary

Problems solved by technology

However, there are still some problems in PDF technology at present, such as: high technical threshold, complicated editing technology, inability to dynamically split and merge, etc.

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