TonicPoint® Transformer

Working with a `Renderer` << Table of Contents >> Creating PDF Documents

Creating Images

The ImageRenderer creates java.awt.image.BufferedImage's. This is particularly useful because it means that you can easily save the rendered image in a variety of formats, such as PNG and JPEG. For example the following code renders the first slide of a presentation to a 640x480 PNG image.

            // Set up the presentation, output file and image
            File presentation = new File(...);
            File output = new File("out.png");
            BufferedImage image = new BufferedImage(640, 480, BufferedImage.TYPE_INT_RGB);

            // Perform the rendering
            ImageRenderer renderer = new ImageRenderer();
            renderer.setPresentation(presentation);
            renderer.setImage(image);
            renderer.render(0);
            ImageIO.write(image, "PNG", output);

To create a JPEG image, you simply need to change "PNG" to "JPEG" in the last line.

The code snippet above uses the javax.imageio package. This package is included in JDK 1.4 and later. If you are using JDK 1.3, then you can add this library by installing the Java Advanced Imaging (JAI) API v1.1.2.

The image renderer does not have any renderer specific properties.

Working with a `Renderer` << Table of Contents >> Creating PDF Documents

TonicPoint® Transformer - Tutorial

Creating Images