Pdfbox 简明教程

<project xmlns="https://maven.apache.org/POM/4.0.0"
   xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="https://maven.apache.org/POM/4.0.0
   https://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>my_project</groupId>
   <artifactId>my_project</artifactId>
   <version>0.0.1-SNAPSHOT</version>

   <build>
      <sourceDirectory>src</sourceDirectory>
      <plugins>
         <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
               <source>1.8</source>
               <target>1.8</target>
            </configuration>
         </plugin>
      </plugins>
   </build>

   <dependencies>
      <dependency>
         <groupId>org.apache.pdfbox</groupId>
         <artifactId>pdfbox</artifactId>
         <version>2.0.1</version>
      </dependency>

      <dependency>
         <groupId>org.apache.pdfbox</groupId>
         <artifactId>fontbox</artifactId>
         <version>2.0.0</version>
      </dependency>

      <dependency>
         <groupId>org.apache.pdfbox</groupId>
         <artifactId>jempbox</artifactId>
         <version>1.8.11</version>
      </dependency>

      <dependency>
         <groupId>org.apache.pdfbox</groupId>
         <artifactId>xmpbox</artifactId>
         <version>2.0.0</version>
      </dependency>

      <dependency>
         <groupId>org.apache.pdfbox</groupId>
         <artifactId>preflight</artifactId>
         <version>2.0.0</version>
      </dependency>

      <dependency>
         <groupId>org.apache.pdfbox</groupId>
         <artifactId>pdfbox-tools</artifactId>
         <version>2.0.0</version>
      </dependency>

   </dependencies>

</project>

import java.io.IOException;
import org.apache.pdfbox.pdmodel.PDDocument;

public class Document_Creation {

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

      //Creating PDF document object
      PDDocument document = new PDDocument();

      //Saving the document
      document.save("C:/PdfBox_Examples/my_doc.pdf");

      System.out.println("PDF created");

      //Closing the document
      document.close();

   }
}

javac Document_Creation.java
java Document_Creation

PDF created

package document;

import java.io.IOException;

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

public class Adding_Pages {

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

      //Creating PDF document object
      PDDocument document = new PDDocument();

      for (int i=0; i<10; i++) {
         //Creating a blank page
         PDPage blankPage = new PDPage();

         //Adding the blank page to the document
         document.addPage( blankPage );
      }

      //Saving the document
      document.save("C:/PdfBox_Examples/my_doc.pdf");
      System.out.println("PDF created");

      //Closing the document
      document.close();

   }
}

javac Adding_pages.java
java Adding_pages

PDF created

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

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
public class LoadingExistingDocument {

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

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/sample.pdf");
      PDDocument document = PDDocument.load(file);

      System.out.println("PDF loaded");

      //Adding a blank page to the document
      document.addPage(new PDPage());

      //Saving the document
      document.save("C:/PdfBox_Examples/sample.pdf");

      //Closing the document
      document.close();

   }
}

javac LoadingExistingDocument.java
java LoadingExistingDocument

PDF loaded

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

import org.apache.pdfbox.pdmodel.PDDocument;

public class RemovingPages {

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

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/sample.pdf");
      PDDocument document = PDDocument.load(file);

      //Listing the number of existing pages
      int noOfPages= document.getNumberOfPages();
      System.out.print(noOfPages);

      //Removing the pages
      document.removePage(2);

      System.out.println("page removed");

      //Saving the document
      document.save("C:/PdfBox_Examples/sample.pdf");

      //Closing the document
      document.close();

   }
}

javac RemovingPages.java
java RemovingPages

3
page removed

import java.io.IOException;
import java.util.Calendar;
import java.util.GregorianCalendar;

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

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

      //Creating PDF document object
      PDDocument document = new PDDocument();

      //Creating a blank page
      PDPage blankPage = new PDPage();

      //Adding the blank page to the document
      document.addPage( blankPage );

      //Creating the PDDocumentInformation object
      PDDocumentInformation pdd = document.getDocumentInformation();

      //Setting the author of the document
      pdd.setAuthor("Tutorialspoint");

      // Setting the title of the document
      pdd.setTitle("Sample document");

      //Setting the creator of the document
      pdd.setCreator("PDF Examples");

      //Setting the subject of the document
      pdd.setSubject("Example document");

      //Setting the created date of the document
      Calendar date = new GregorianCalendar();
      date.set(2015, 11, 5);
      pdd.setCreationDate(date);
      //Setting the modified date of the document
      date.set(2016, 6, 5);
      pdd.setModificationDate(date);

      //Setting keywords for the document
      pdd.setKeywords("sample, first example, my pdf");

      //Saving the document
      document.save("C:/PdfBox_Examples/doc_attributes.pdf");

      System.out.println("Properties added successfully ");

      //Closing the document
      document.close();

   }
}

javac AddingAttributes.java
java AddingAttributes

Properties added successfully

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

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

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

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/doc_attributes.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();
   }
}

javac RetrivingDocumentAttributes.java
java RetrivingDocumentAttributes

Author of the document is :Tutorialspoint
Title of the document is :Sample document
Subject of the document is :Example document
Creator of the document is :PDF Examples
Creation date of the document is :11/5/2015
Modification date of the document is :6/5/2016
Keywords of the document are :sample, first example, my pdf

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

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDType1Font;

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

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/my_doc.pdf");
      PDDocument document = PDDocument.load(file);

      //Retrieving the pages of the document
      PDPage page = document.getPage(1);
      PDPageContentStream contentStream = new PDPageContentStream(document, page);

      //Begin the Content stream
      contentStream.beginText();

      //Setting the font to the Content stream
      contentStream.setFont(PDType1Font.TIMES_ROMAN, 12);

      //Setting the position for the line
      contentStream.newLineAtOffset(25, 500);

      String text = "This is the sample document and we are adding content to it.";

      //Adding text in the form of string
      contentStream.showText(text);

      //Ending the content stream
      contentStream.endText();

      System.out.println("Content added");

      //Closing the content stream
      contentStream.close();

      //Saving the document
      document.save(new File("C:/PdfBox_Examples/new.pdf"));

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

javac AddingContent.java
java AddingContent

Content added

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

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDType1Font;

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

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/my_pdf.pdf");
      PDDocument doc = document.load(file);

      //Creating a PDF Document
      PDPage page = doc.getPage(1);

      PDPageContentStream contentStream = new PDPageContentStream(doc, page);

      //Begin the Content stream
      contentStream.beginText();

      //Setting the font to the Content stream
      contentStream.setFont( PDType1Font.TIMES_ROMAN, 16 );

      //Setting the leading
      contentStream.setLeading(14.5f);

      //Setting the position for the line
      contentStream.newLineAtOffset(25, 725);

      String text1 = "This is an example of adding text to a page in the pdf document.
         we can add as many lines";
      String text2 = "as we want like this using the ShowText()  method of the
         ContentStream class";

      //Adding text in the form of string
      contentStream. ShowText(text1);
      contentStream.newLine();
      contentStream. ShowText(text2);
      //Ending the content stream
      contentStream.endText();

      System.out.println("Content added");

      //Closing the content stream
      contentStream.close();

      //Saving the document
      doc.save(new File("C:/PdfBox_Examples/new.pdf"));

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

javac AddMultipleLines.java
java AddMultipleLines

Content added

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

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.text.PDFTextStripper;
public class ReadingText {

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

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/new.pdf");
      PDDocument document = PDDocument.load(file);

      //Instantiate PDFTextStripper class
      PDFTextStripper pdfStripper = new PDFTextStripper();

      //Retrieving text from PDF document
      String text = pdfStripper.getText(document);
      System.out.println(text);

      //Closing the document
      document.close();

   }
}

javac ReadingText.java
java ReadingText

This is an example of adding text to a page in the pdf document. we can add as many lines
as we want like this using the ShowText() method of the ContentStream class.

import java.io.File;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;

public class InsertingImage {

   public static void main(String args[]) throws Exception {
      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/sample.pdf");
      PDDocument doc = PDDocument.load(file);

      //Retrieving the page
      PDPage page = doc.getPage(0);

      //Creating PDImageXObject object
      PDImageXObject pdImage = PDImageXObject.createFromFile("C:/PdfBox_Examples/logo.png",doc);

      //creating the PDPageContentStream object
      PDPageContentStream contents = new PDPageContentStream(doc, page);

      //Drawing the image in the PDF document
      contents.drawImage(pdImage, 70, 250);

      System.out.println("Image inserted");

      //Closing the PDPageContentStream object
      contents.close();

      //Saving the document
      doc.save("C:/PdfBox_Examples/sample.pdf");

      //Closing the document
      doc.close();

   }
}

javac InsertingImage.java
java InsertingImage

Image inserted

import java.io.File;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.encryption.AccessPermission;
import org.apache.pdfbox.pdmodel.encryption.StandardProtectionPolicy;
public class EncriptingPDF {

   public static void main(String args[]) throws Exception {
      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/sample.pdf");
      PDDocument document = PDDocument.load(file);

      //Creating access permission object
      AccessPermission ap = new AccessPermission();

      //Creating StandardProtectionPolicy object
      StandardProtectionPolicy spp = new StandardProtectionPolicy("1234", "1234", ap);

      //Setting the length of the encryption key
      spp.setEncryptionKeyLength(128);

      //Setting the access permissions
      spp.setPermissions(ap);

      //Protecting the document
      document.protect(spp);

      System.out.println("Document encrypted");

      //Saving the document
      document.save("C:/PdfBox_Examples/sample.pdf");
      //Closing the document
      document.close();

   }
}

javac EncriptingPDF.java
java EncriptingPDF

Document encrypted

import java.io.File;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.interactive.action.PDActionJavaScript;

public class AddJavaScript {

   public static void main(String args[]) throws Exception {

      //Loading an existing file
      File file = new File("C:/PdfBox_Examples/new.pdf");
      PDDocument document = PDDocument.load(file);

      String javaScript = "app.alert( {cMsg: 'this is an example', nIcon: 3,"
         + " nType: 0, cTitle: 'PDFBox Javascript example’} );";

      //Creating PDActionJavaScript object
      PDActionJavaScript PDAjavascript = new PDActionJavaScript(javaScript);

      //Embedding java script
      document.getDocumentCatalog().setOpenAction(PDAjavascript);

      //Saving the document
      document.save( new File("C:/PdfBox_Examples/new.pdf") );
      System.out.println("Data added to the given PDF");

      //Closing the document
      document.close();

   }
}

javac AddJavaScript.java
java AddJavaScript

Data added to the given PDF

import org.apache.pdfbox.multipdf.Splitter;
import org.apache.pdfbox.pdmodel.PDDocument;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Iterator;

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

      //Loading an existing PDF document
      File file = new File("C:/PdfBox_Examples/sample.pdf");
      PDDocument document = PDDocument.load(file);

      //Instantiating Splitter class
      Splitter splitter = new Splitter();

      //splitting the pages of a PDF document
      List<PDDocument> Pages = splitter.split(document);

      //Creating an iterator
      Iterator<PDDocument> iterator = Pages.listIterator();

      //Saving each page as an individual document
      int i = 1;
      while(iterator.hasNext()) {
         PDDocument pd = iterator.next();
         pd.save("C:/PdfBox_Examples/sample"+ i++ +".pdf");
      }
      System.out.println("Multiple PDF’s created");
      document.close();
   }
}

javac SplitPages.java
java SplitPages

Multiple PDF’s created

import org.apache.pdfbox.multipdf.PDFMergerUtility;
import java.io.File;
import java.io.IOException;
public class MergePDFs {
   public static void main(String[] args) throws IOException {
      File file1 = new File("C:\\EXAMPLES\\Demo1.pdf");
      File file2 = new File("C:\\EXAMPLES\\Demo2.pdf");

      //Instantiating PDFMergerUtility class
      PDFMergerUtility PDFmerger = new PDFMergerUtility();

      //Setting the destination file
      PDFmerger.setDestinationFileName("C:\\Examples\\merged.pdf");

      //adding the source files
      PDFmerger.addSource(file1);
      PDFmerger.addSource(file2);

      //Merging the two documents
      PDFmerger.mergeDocuments();
      System.out.println("Documents merged");
   }
}

javac MergePDFs.java
java MergePDFs

Documents merged

import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.PDFRenderer;
public class PdfToImage {

   public static void main(String args[]) throws Exception {

      //Loading an existing PDF document
      File file = new File("C:/PdfBox_Examples/sample.pdf");
      PDDocument document = PDDocument.load(file);

      //Instantiating the PDFRenderer class
      PDFRenderer renderer = new PDFRenderer(document);

      //Rendering an image from the PDF document
      BufferedImage image = renderer.renderImage(0);

      //Writing the image to a file
      ImageIO.write(image, "JPEG", new File("C:/PdfBox_Examples/myimage.jpg"));

      System.out.println("Image created");

      //Closing the document
      document.close();

   }
}

javac PdfToImage.java
java PdfToImage

Image created

import java.awt.Color;
import java.io.File;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
public class ShowColorBoxes {

   public static void main(String args[]) throws Exception {

      //Loading an existing document
      File file = new File("C:/PdfBox_Examples/BlankPage.pdf");
      PDDocument document = PDDocument.load(file);

      //Retrieving a page of the PDF Document
      PDPage page = document.getPage(0);

      //Instantiating the PDPageContentStream class
      PDPageContentStream contentStream = new PDPageContentStream(document, page);

      //Setting the non stroking color
      contentStream.setNonStrokingColor(Color.DARK_GRAY);

      //Drawing a rectangle
      contentStream.addRect(200, 650, 100, 100);

      //Drawing a rectangle
      contentStream.fill();

      System.out.println("rectangle added");

      //Closing the ContentStream object
      contentStream.close();

      //Saving the document
      File file1 = new File("C:/PdfBox_Examples/colorbox.pdf");
      document.save(file1);

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

javac AddRectangles.java
java AddRectangles

Rectangle created