This topic focuses on how to Compress a PNG in Java. It encompasses all the required resources, classes, methods and a working example code to compress PNG using Java. The generated application can be used in any Java compliant environment inside Windows, macOS or Linux.

Steps to Compress PNG using Java

1. Set up the environment by adding Aspose.Imaging for Java using the repository manager
2. Load the source PNG image file using an instance of the Image class
3. Use an instance of the PngOptions class to set the compression ratio along with other properties
4. Save the compressed PNG file on the disk

By adhering to the aforementioned steps, you can easily manage PNG compression in Java using a step-by-step approach whereby we configure the environment initially by including the required resources inside the project. We will then access the source PNG image from the disk by using an instance of the Image class which is then followed by using an instance of the PngOptions class to configure the compression ratio along with other related properties. Finally, the compressed PNG image will be saved on the disk based on the Pngoptions settings.

Code to Compress PNG using Java

This example code can be used for compressing PNG file in Java using very simple API calls. The Image class comprises of multiple overload functions that may be used to load the images from a stream in conjunction with additional LoadOptions parameters to support other types of images. The PngOptions class exposes the methods to set the properties like color type, compression ratio, vector rasterization options etc, to name a few.

In this topic, we have learnt about how to achieve PNG compression using Java. If you are interested in learning about converting a PNG to an ICON, refer to the article on how to convert PNG to ICON in Java.