Convert multiple JPG to JPG in Java

High-speed Java library to convert several JPG into JPG

Use our document merging API to create portable, robust and secure software in Java. This is a professional solution to convert multiple JPG into JPG using Java. Try it online for free!

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Convert JPG to JPG in Java

Modern Java library allows Java developers to convert JPG to JPG image format with a few lines of code. JPG image conversion engine analyses the original graphical content, and exports the combined picture to JPG format.

Use Java to convert JPG to JPG image format with maximum flexibility and speed. Run online live demo and check the highest JPG image quality right in a browser. JPG Conversion API supports a bunch of useful options.

Merge JPG to JPG in Java

To convert several JPG to JPG just use Java library that handles all low-level details.

Convert multiple JPG images and save the result as a single JPG image. If you develop code in Java, image format conversion will be simpler than it sounds. See Java example that iterates through image files and combines them into JPG:

Code example in Java to combine multiple JPG to JPG
Upload a file you want to merge
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Upload a file you want to merge
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.jpg", "Input2.jpg");

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.jpg");
Run code

How to merge JPG to JPG Java

  1. Install Aspose.Words for Java.
  2. Add a library reference (import the library) to your Java project.
  3. Open the source JPG file in Java.
  4. Convert several JPG files into JPG in a few seconds.
  5. Call the appendDocument() method, passing an output filename with JPG extension.
  6. Get the result of conversion JPG into JPG.

Java library to convert several JPG into JPG

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.

Other Supported JPG Merge operations

You can merge JPG to many other file formats:

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