Acquisition method and device of PDF (Portable Document Format) documentation comment
An acquisition method and an acquisition device technology, which are applied in the field of acquisition of PDF document annotations, can solve problems such as the inconvenience of direct use of PDF document annotations, and achieve the effect of convenient extraction and subsequent processing
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[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0058] Such as figure 1 Shown, the acquisition method of PDF document comment of the present invention, comprises the steps:
[0059] Step 11, analyzing the architecture of the PDF document to obtain the cross-reference table of the PDF document;
[0060] Step 12, searching the cross-reference table to obtain a Trailer dictionary at the end of the file;
[0061] Step 13, analyzing the Trailer dictionary at the end of the file to obtain the Catalog dictionary corresponding to the key value Root;
[0062] Step 14, searching the Catalog dictionary to obtain the page dictionary of the PDF document; wherein, the page dictionary includes: pages of the PDF document;
[0063] Step 15, searching the page dictionary of the PDF document to obtain the annota...
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