Java: create PDF pages from images using the PDFBox library

Question

I need to convert images (mostly JPEG) directly to PDF pages for a PDF document.
Images may vary in size.

Each PDF page should have exact dimensions, like images.
Therefore, each page contains only the full resolution image.

How can this be achieved so that the page is set to the size of the image / content?
Since I saw PDF files with different page sizes and orientations, but how can this be done using PDFBox?

Answer 1

I solved this with the following code:

PDDocument document = new PDDocument(); InputStream in = new FileInputStream(someImage); BufferedImage bimg = ImageIO.read(in); float width = bimg.getWidth(); float height = bimg.getHeight(); PDPage page = new PDPage(new PDRectangle(width, height)); document.addPage(page); PDXObjectImage img = new PDJpeg(document, new FileInputStream(someImage)); PDPageContentStream contentStream = new PDPageContentStream(document, page); contentStream.drawImage(img, 0, 0); contentStream.close(); in.close(); document.save("test.pdf"); document.close(); 

To complete the code from the current PDFBox examples for the PDFBox API 2+ ( https://svn.apache.org/repos/asf/pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/AddImageToPDF .java )

 /* * 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.PDPageContentStream; import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode; import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject; /** * This is an example that creates a reads a document and adds an image to it.. * * The example is taken from the pdf file format specification. * * @author Ben Litchfield */ public class AddImageToPDF { /** * Add an image to an existing PDF document. * * @param inputFile The input PDF to add the image to. * @param imagePath The filename of the image to put in the PDF. * @param outputFile The file to write to the pdf to. * * @throws IOException If there is an error writing the data. */ public void createPDFFromImage( String inputFile, String imagePath, String outputFile ) throws IOException { try (PDDocument doc = PDDocument.load(new File(inputFile))) { //we will add the image to the first page. PDPage page = doc.getPage(0); // createFromFile is the easiest way with an image file // if you already have the image in a BufferedImage, // call LosslessFactory.createFromImage() instead PDImageXObject pdImage = PDImageXObject.createFromFile(imagePath, doc); try (PDPageContentStream contentStream = new PDPageContentStream(doc, page, AppendMode.APPEND, true, true)) { // contentStream.drawImage(ximage, 20, 20 ); // better method inspired by http://stackoverflow.com/a/22318681/535646 // reduce this value if the image is too large float scale = 1f; contentStream.drawImage(pdImage, 20, 20, pdImage.getWidth() * scale, pdImage.getHeight() * scale); } doc.save(outputFile); } } /** * This will load a PDF document and add a single image on it. * <br> * see usage() for commandline * * @param args Command line arguments. */ public static void main(String[] args) throws IOException { AddImageToPDF app = new AddImageToPDF(); if( args.length != 3 ) { app.usage(); } else { app.createPDFFromImage( args[0], args[1], args[2] ); } } /** * This will print out a message telling how to use this example. */ private void usage() { System.err.println( "usage: " + this.getClass().getName() + " <input-pdf> <image> <output-pdf>" ); } }