org.apache.pdfbox.examples.pdmodel.SuperimposePage Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of pdfbox-examples Show documentation

The Apache PDFBox library is an open source Java tool for working with PDF documents. This artefact contains examples on how the library can be used.

There is a newer version: 3.0.3

Show newest version

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.pdfbox.examples.pdmodel;

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.common.PDRectangle;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDType1Font;
import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
import org.apache.pdfbox.multipdf.LayerUtility;
import org.apache.pdfbox.util.Matrix;

/**
 * Example to show superimposing a PDF page onto another PDF.
 */
public final class SuperimposePage
{
    
    private SuperimposePage()
    {
    }

    public static void main(String[] args) throws IOException
    {
        if (args.length != 2)
        {
            System.err.println("usage: " + SuperimposePage.class.getName() +
                    "  ");
            System.exit(1);
        }
        String sourcePath = args[0];
        String destPath = args[1];
        
        PDDocument sourceDoc = null;
        try
        {
            // load the source PDF
            sourceDoc = PDDocument.load(new File(sourcePath));
            int sourcePage = 1;
            
            // create a new PDF and add a blank page
            PDDocument doc = new PDDocument();
            PDPage page = new PDPage();
            doc.addPage(page);

            // write some sample text to the new page
            PDPageContentStream contents = new PDPageContentStream(doc, page);
            contents.beginText();
            contents.setFont(PDType1Font.HELVETICA_BOLD, 12);
            contents.newLineAtOffset(2, PDRectangle.LETTER.getHeight() - 12);
            contents.showText("Sample text");
            contents.endText();
            
            // Create a Form XObject from the source document using LayerUtility
            LayerUtility layerUtility = new LayerUtility(doc);
            PDFormXObject form = layerUtility.importPageAsForm(sourceDoc, sourcePage - 1);
            
            // draw the full form
            contents.drawForm(form);
            
            // draw a scaled form
            contents.saveGraphicsState();
            Matrix matrix = Matrix.getScaleInstance(0.5f, 0.5f);
            contents.transform(matrix);
            contents.drawForm(form);
            contents.restoreGraphicsState();

            // draw a scaled and rotated form
            contents.saveGraphicsState();
            matrix.rotate(1.8 * Math.PI); // radians
            contents.transform(matrix);
            contents.drawForm(form);
            contents.restoreGraphicsState();

            contents.close();
            doc.save(destPath);
            doc.close();
        }
        finally
        {
            if (sourceDoc != null)
            {
                sourceDoc.close();
            }
        }
    }
}