Open the site: image into PNG . Drag and drop image files to merge them online. Or just use a code sample in Java with a few lines of code. Install Aspose.Words for Java. Add a library reference (import the library) to your Java project. Open the source image file in Java. Combine image files in a few seconds. Call the appendDocument() method, passing an output filename with required extension. Get the result of merging image as a single file.

Why merge image together in Java?

Merging a group of image into one allows you to handle materials more effectively.

What output file formats can I use to combine image files?

We support a variety of output file formats for image merging, including PDF, DOCX, DOC, HTML, RTF, Markdown, XML, ODT, JPG, PNG, TIFF, TXT and many more.

What is the maximum image size supported by Aspose.Words for Java?

There are no size limits to merge image files using Aspose.Words for Java.

Merge Image Java

Convert images in Java

Java library allows Java developers to convert images easily. Image conversion engine analyses the original content, then exports the combined graphical content to the required format.

Image conversion may be tricky, unless you have a professional tool to do the job. Use Java to convert images with maximum flexibility and speed. Run online live demo and check the highest image quality right in a browser. Image Conversion API supports a bunch of useful options.

Merge images in Java

Enhance image format capabilities with Aspose.Words for Java. This is a simple way to combine images with Java library that handles all low-level details.

Merge images and save the result as a single file. If you develop code in Java, this will be simpler than it sounds. See Java example that iterates through images and combines them:

Code example in Java to merge PNG files

Input files

Upload a file you want to merge

Run code

Upload a file you want to merge

Output format

Select the target format from the list

// Repository path: https://releases.aspose.com/java/repo/
// Maven, where 'ver' - Aspose.Words version number, for example, 24.4.
<dependency>
  <groupId>com.aspose</groupId>
  <artifactId>aspose-words</artifactId>
  <version>ver</version>
  <classifier>jdk17</classifier>
</dependency>

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// Repository path: https://releases.aspose.com/java/repo/
// Gradle, where 'ver' - Aspose.Words version number, for example, 24.4.
compile(group: 'com.aspose', name: 'aspose-words', version: 'ver', classifier: 'jdk17')

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// Repository path: https://releases.aspose.com/java/repo/
// Ivy, where 'ver' - Aspose.Words version number, for example, 24.4.
<dependency org="com.aspose" name="aspose-words" rev="ver">
 <artifact name="aspose-words" m:classifier="jdk17" ext="jar"/>
</dependency>

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// Repository path: https://releases.aspose.com/java/repo/
// Sbt, where 'ver' - Aspose.Words version number, for example, 24.4.
libraryDependencies += "com.aspose" % "aspose-words" % "ver"

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import com.aspose.words.*;

List<String> fileNames = Arrays.asList("Input1.png", "Input2.png");

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

List<Shape> shapes = fileNames.stream().map(fileName -> {
    try {
        return builder.insertImage(fileName);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}).collect(Collectors.toList());

// Calculate the maximum width and height and update page settings 
// to crop the document to fit the size of the pictures.
PageSetup pageSetup = builder.getPageSetup();
pageSetup.setPageWidth(shapes.stream().mapToDouble(shape -> shape.getWidth()).max().getAsDouble());
pageSetup.setPageHeight(shapes.stream().mapToDouble(shape -> shape.getHeight()).sum());
pageSetup.setTopMargin(0);
pageSetup.setLeftMargin(0);
pageSetup.setBottomMargin(0);
pageSetup.setRightMargin(0);

doc.save("Output.png");

            

					Run code
				

You may freely copy this code and use it in any applicable purpose

How to merge image

Install Aspose.Words for Java.
Add a library reference (import the library) to your Java project.
Open the source image file in Java.
Combine image files in a few seconds.
Call the appendDocument() method, passing an output filename with required extension.
Get the result of merging image as a single file.

Java library to merge image files

We host our Java packages in Maven repositories. 'Aspose.Words for Java' is a common JAR file containing byte-code. Please follow the step-by-step instructions on how to install it to your Java developer environment.

System Requirements

Java SE 7 and more recent Java versions are supported. We also provide a separate package for Java SE 6 in case you are obliged to use this outdated JRE.

Our Java package is cross-platform and runs on all operating systems with JVM implementation, including Microsoft Windows, Linux, macOS, Android and iOS.

For information on optional package dependencies, such as JogAmp JOGL, Harfbuzz font engine, Java Advanced Imaging JAI, please refer to Product Documentation.

You can merge image to many other file formats: