Java tutorial
package fi.nls.oskari.printout.printing.pdfbox; /* * 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. */ import org.apache.pdfbox.exceptions.COSVisitorException; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.pdmodel.PDPage; import org.apache.pdfbox.pdmodel.common.PDRectangle; import org.apache.pdfbox.pdmodel.edit.PDPageContentStream; import org.apache.pdfbox.pdmodel.font.PDFont; import org.apache.pdfbox.pdmodel.font.PDType1Font; import org.junit.Test; import java.awt.geom.AffineTransform; import java.io.IOException; /** * This is an example of how to use a text matrix. * * @version $Revision: 1.0 $ */ public class UsingTextMatrix { /** * Constructor. */ public UsingTextMatrix() { super(); } /** * creates a sample document with some text using a text matrix. * * @param message * The message to write in the file. * @param outfile * The resulting PDF. * * @throws IOException * If there is an error writing the data. * @throws COSVisitorException * If there is an error writing the PDF. */ public void doIt(String message, String outfile) throws IOException, COSVisitorException { // the document PDDocument doc = null; try { doc = new PDDocument(); // Page 1 PDFont font = PDType1Font.HELVETICA; PDPage page = new PDPage(); page.setMediaBox(PDPage.PAGE_SIZE_A4); doc.addPage(page); float fontSize = 12.0f; PDRectangle pageSize = page.findMediaBox(); System.err.println("pageSize " + pageSize); System.err.println( "pageSize cm " + pageSize.getWidth() / 72 * 2.54 + "," + pageSize.getHeight() / 72 * 2.54); float centeredXPosition = (pageSize.getWidth() - fontSize / 1000f) / 2f; float stringWidth = font.getStringWidth(message); float centeredYPosition = (pageSize.getHeight() - (stringWidth * fontSize) / 1000f) / 3f; PDPageContentStream contentStream = new PDPageContentStream(doc, page, false, false); contentStream.setFont(font, fontSize); contentStream.beginText(); // counterclockwise rotation for (int i = 0; i < 8; i++) { contentStream.setTextRotation(i * Math.PI * 0.25, centeredXPosition, pageSize.getHeight() - centeredYPosition); contentStream.drawString(message + " " + i); } // clockwise rotation for (int i = 0; i < 8; i++) { contentStream.setTextRotation(-i * Math.PI * 0.25, centeredXPosition, centeredYPosition); contentStream.drawString(message + " " + i); } contentStream.endText(); contentStream.close(); // Page 2 page = new PDPage(); page.setMediaBox(PDPage.PAGE_SIZE_A4); doc.addPage(page); fontSize = 1.0f; contentStream = new PDPageContentStream(doc, page, false, false); contentStream.setFont(font, fontSize); contentStream.beginText(); // text scaling for (int i = 0; i < 10; i++) { contentStream.setTextScaling(12 + (i * 6), 12 + (i * 6), 100, 100 + i * 50); contentStream.drawString(message + " " + i); } contentStream.endText(); contentStream.close(); // Page 3 page = new PDPage(); page.setMediaBox(PDPage.PAGE_SIZE_A4); doc.addPage(page); fontSize = 1.0f; contentStream = new PDPageContentStream(doc, page, false, false); contentStream.setFont(font, fontSize); contentStream.beginText(); int i = 0; // text scaling combined with rotation contentStream.setTextMatrix(12, 0, 0, 12, centeredXPosition, centeredYPosition * 1.5); contentStream.drawString(message + " " + i++); contentStream.setTextMatrix(0, 18, -18, 0, centeredXPosition, centeredYPosition * 1.5); contentStream.drawString(message + " " + i++); contentStream.setTextMatrix(-24, 0, 0, -24, centeredXPosition, centeredYPosition * 1.5); contentStream.drawString(message + " " + i++); contentStream.setTextMatrix(0, -30, 30, 0, centeredXPosition, centeredYPosition * 1.5); contentStream.drawString(message + " " + i++); contentStream.endText(); contentStream.close(); // Page 4 { page = new PDPage(); page.setMediaBox(PDPage.PAGE_SIZE_A4); doc.addPage(page); fontSize = 1.0f; contentStream = new PDPageContentStream(doc, page, false, false); contentStream.setFont(font, fontSize); contentStream.beginText(); AffineTransform root = new AffineTransform(); root.scale(72.0 / 2.54, 72.0 / 2.54); for (i = 0; i < pageSize.getHeight() / 72 * 2.54; i++) { // text scaling combined with rotation { AffineTransform rowMatrix = new AffineTransform(root); rowMatrix.translate(1, i); contentStream.setTextMatrix(rowMatrix); contentStream.drawString(message + " " + i); } } contentStream.endText(); contentStream.close(); } doc.save(outfile); } finally { if (doc != null) { doc.close(); } } } /** * This will create a PDF document with some examples how to use a text * matrix. * * @param args * Command line arguments. */ @Test public void testMain() { UsingTextMatrix app = new UsingTextMatrix(); try { app.doIt("Hello World!", "test-output/outs.pdf"); } catch (Exception e) { e.printStackTrace(); } } }