java - 如何使用 PDFBox 读取 PDF 文件内容中的特殊字符串

Question

我想编写一个程序来提取论文中的主题、作者、摘要和其他信息。pdfbox 可以做到这一点吗？我该怎么办？

Answer 1

假设您已经将 pdfbox jar 添加到您的项目中，下面是您检索 PDF 的一些基本文档属性的代码

import java.io.File; 
import java.io.IOException;

import org.apache.pdfbox.pdmodel.PDDocument; 
import org.apache.pdfbox.pdmodel.PDDocumentInformation;

    public class readPdf {
       public static void main(String args[]) throws IOException {

          //Loading an existing document 

          File file = new File("C:/Users/user1/Desktop/test.pdf");

          PDDocument document = PDDocument.load(file);
          //Getting the PDDocumentInformation object
          PDDocumentInformation pdd = document.getDocumentInformation();

          //Retrieving the info of a PDF document
          System.out.println("Author of the document is :"+ pdd.getAuthor());
          System.out.println("Title of the document is :"+ pdd.getTitle());
          System.out.println("Subject of the document is :"+ pdd.getSubject());

          System.out.println("Creator of the document is :"+ pdd.getCreator());
          System.out.println("Creation date of the document is :"+ pdd.getCreationDate());
          System.out.println("Modification date of the document is :"+ 
             pdd.getModificationDate()); 
          System.out.println("Keywords of the document are :"+ pdd.getKeywords()); 

          //Closing the document 
          document.close();        
       }  
    }    

更多文档属性请引用here 。 HTH。