Method for cutting PDF files according to involved stock right transfer themes

The invention discloses a method for cutting PDF files according to involved stock right transfer themes. The method comprises the following steps of: 1) obtaining a disclosed business file stored ina PDF format through a distributed internet crawler technology; 2) determining a language description feature, a keyword and a keyword title of the PDF file involved in a stock right transfer theme; 3) determining a page number information set P of the PDF file comprising the keyword and the keyword title; 4) removing abnormal page numbers in the page number information set P, of the PDF file, obtained in the step 3) by adoption of a page abnormity removal mechanism, so as to obtain a removed page number information set Pfinal of the PDF file; and 5) carrying out stock right transfer theme-related cutting on a source PDF file according to the removed page number information set Pfinal, of the PDF file, obtained in the step 4), so as to completing the cutting of the PDF file involved in thestock right transfer them