pdf文件内容提取。将pdf文件中的文字内容提取出来，并生成相应的txt文件。,pdf file content extraction. Pdf document will be the text content extracted, and generates the corresponding txt file.

将文本进行切割分离以便于提取出对自己有用的信息-Separation of the text to be cut in order to facilitate extraction of useful information out of their own