<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

    <bean name="*.pdf" class="common.PDFView">
    </bean>

</beans>

import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfWriter;
import org.springframework.web.servlet.view.document.AbstractPdfView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.FileInputStream;
import java.util.Map;

public class PDFView extends AbstractPdfView {
  private String filename;

  public String getFilename() {
    return filename;
  }

  public void setFilename(String filename) {
    this.filename = filename;
  }

  protected void buildPdfDocument(
          Map model,
          Document doc,
          PdfWriter writer,
          HttpServletRequest req,
          HttpServletResponse resp)
          throws Exception {

    PdfContentByte cb = writer.getDirectContent();
    PdfReader reader = new PdfReader(new FileInputStream(filename));
    for (int i = 1; i <= reader.getNumberOfPages(); i++) {
      doc.newPage();
      PdfImportedPage page = writer.getImportedPage(reader, i);
      cb.addTemplate(page, 0, 0);
    }
  }

  protected Document newDocument() {
    return new Document();
  }

}

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