pdf.SplitPDF.java Source code

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Here is the source code for pdf.SplitPDF.java

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/*
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 *//*
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    */
package pdf;

/**
 *
 * @author Rafa
 */
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfImportedPage;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;

public class SplitPDF {

    /* public static void main(String[] args) {
    try {
        SplitPDF.splitPDF(new FileInputStream("C:\\pdf\\one.pdf"),
                new FileOutputStream("C:\\pdf\\output1.pdf"), 1, 12);
        /*SplitPDF.splitPDF(new FileInputStream("C:\\pdf\\two.pdf"),
                new FileOutputStream("C:\\pdf\\output2.pdf"), 13, 20);
        
    } catch (Exception e) {
        e.printStackTrace();
    }
     }*/

    public static void splitPDF(InputStream inputStream, OutputStream outputStream, int fromPage, int toPage) {
        Document document = new Document();
        try {
            PdfReader inputPDF = new PdfReader(inputStream);

            int totalPages = inputPDF.getNumberOfPages();

            //make fromPage equals to toPage if it is greater
            if (fromPage > toPage) {
                fromPage = toPage;
            }
            if (toPage > totalPages) {
                toPage = totalPages;
            }

            // Create a writer for the outputstream
            PdfWriter writer = PdfWriter.getInstance(document, outputStream);

            document.open();
            PdfContentByte cb = writer.getDirectContent(); // Holds the PDF data
            PdfImportedPage page;

            while (fromPage <= toPage) {
                document.newPage();
                page = writer.getImportedPage(inputPDF, fromPage);
                cb.addTemplate(page, 0, 0);
                fromPage++;
            }
            outputStream.flush();
            document.close();
            outputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (document.isOpen()) {
                document.close();
            }
            try {
                if (outputStream != null) {
                    outputStream.close();
                }
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
    }
}