Join Word, PDF or Web documents together in Java

High-speed Java library to merge office documents to a variety of file formats

Use our document merging API to create portable, robust and secure software in Java. This is a powerful software solution to join Word, PDF, Web documents using Java.

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Convert Word, PDF, JPG in Java

Java library allows Java developers to convert Word, PDF and many other file formats. Powerful conversion engine analyses layouts and styles of the original documents, then exports the combined result to the required format.

Document conversions from one format to another may be tricky, unless you have a professional tool to do the job. Use Java to convert Word, PDF, JPG with maximum flexibility and speed. Run online live demo and check the highest quality of conversion right in a browser. DOCX Conversion API supports a bunch of useful options.

Merge Word, PDF, JPG into one file

This is a simple way of converting office documents from one format to another while leaving all the low-level details to Conversion API. Java library enables Java developers to convert documents in many popular formats with maximum flexibility and efficiency:

  • Microsoft Word: DOCX, DOC, RTF, DOT, DOTM, DOTX, DOCM
  • OpenOffice: ODT, OTT
  • Fixed Layout: PDF, PostScript, XPS, OpenXPS
  • Images: PNG, JPG, GIF, BMP, TIFF, SVG, EMF
  • Web: HTML, MHTML
  • Others: MOBI, EPUB, Xaml, PCL, etc.

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

Code example in Java to combine multiple files into one
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
import com.aspose.words.*;

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

Document output = new Document();
// Remove all content from the destination document before appending.

for (String fileName : fileNames)
    Document input = new Document(fileName);
    // Append the source document to the end of the destination document.
    output.appendDocument(input, ImportFormatMode.KEEP_SOURCE_FORMATTING);
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How to merge PDF, Word, JPG and other file formats in Java

  1. Install 'Aspose.Words for Java'.
  2. Add a library reference (import the library) to your Java project.
  3. Open the source file in Java.
  4. Merge files into one.
  5. Call the 'appendDocument()' method, passing an output filename with required extension.
  6. Get the combined result as a separate file.

Java library to merge 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.


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