import org.apache.pdfbox.multipdf.PDFMergerUtility;
import org.apache.pdfbox.pdmodel.PDDocument;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
public class MergePdf {
public static void main(String[] args) throws IOException {
//Loading an existing PDF document
File file1 = new File("d:/data/1.pdf");
PDDocument doc1 = PDDocument.load(file1);
File file2 = new File("d:/data/2.pdf");
PDDocument doc2 = PDDocument.load(file2);
File file3 = new File("d:/data/3.pdf");
PDDocument doc3 = PDDocument.load(file3);
//Instantiating PDFMergerUtility class
PDFMergerUtility PDFmerger = new PDFMergerUtility();
//Setting the destination file
PDFmerger.setDestinationFileName("d:/data/result2.pdf");
//adding the source files
PDFmerger.addSource(file1);
PDFmerger.addSource(file2);
PDFmerger.addSource(file3);
//Merging the documents
PDFmerger.mergeDocuments();
//Closing the documents
doc1.close();
doc2.close();
doc3.close();
}
}
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