Java 示例 - 合并两个 PDF

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  问题描述

  如何使用 Java 合并两个 PDF。
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  解决方案

  以下是使用 Java 合并两个 pdf 文档的示例程序。

  
  import org.apache.pdfbox.multipdf.PDFMergerUtility; 
  import org.apache.pdfbox.pdmodel.PDDocument;  
  import java.io.File; 
  import java.io.IOException;  
  public class MergingPdfs { 
     public static void main(String[] args) throws IOException { 
        
        //Loading an existing PDF document 
        File file1 = new File("C:/pdfBox/sample1.pdf"); 
        PDDocument doc1 = PDDocument.load(file1); 
        File file2 = new File("C:/pdfBox/sample2.pdf"); 
        PDDocument doc2 = PDDocument.load(file2); 
        //Instantiating PDFMergerUtility class 
        PDFMergerUtility PDFmerger = new PDFMergerUtility();       
        //Setting the destination file 
        PDFmerger.setDestinationFileName("C:/pdfBox/merged.pdf"); 
        //adding the source files 
        PDFmerger.addSource(file1); 
        PDFmerger.addSource(file2); 
        //Merging the two documents 
        PDFmerger.mergeDocuments(); 
        System.out.println("Documents merged"); 
        //Closing the documents 
        doc1.close(); 
        doc2.close();           
     } 
  }