Convert XPS to BMP in Java

Introduction

Welcome to this step-by-step guide on converting XPS (XML Paper Specification) files to BMP (Bitmap) format in Java using Aspose.Page. Aspose.Page for Java is a powerful library that provides comprehensive features for working with XPS documents. In this tutorial, we will walk you through the process of converting XPS files to BMP images effortlessly.

Prerequisites

Before diving into the conversion process, ensure you have the following prerequisites:

• Java Development Environment: Make sure you have Java installed on your system.
• Aspose.Page for Java Library: Download and include the Aspose.Page for Java library in your project. You can find the library here.
• Sample XPS File: Prepare a sample XPS document that you want to convert to BMP.

Import Packages

Include the necessary Aspose.Page packages in your Java code:

import com.aspose.xps.XpsDocument;
import java.io.FileOutputStream;

Let’s break down the conversion process into easy-to-follow steps:

Step 1: Load XPS Document

// The path to the documents directory.
String dataDir = "Your Document Directory";
// Load XPS document
XpsDocument document = new XpsDocument(dataDir + "input.xps");

Step 2: Initialize Options

// Initialize options object with necessary parameters.
BmpSaveOptions options = new BmpSaveOptions();
options.setSmoothingMode(SmoothingMode.HighQuality);
options.setResolution(300);
options.setPageNumbers(new int[]{1, 2, 6});

Step 3: Create Rendering Device

// Create rendering device for BMP format
ImageDevice device = new ImageDevice();

Step 4: Save Document

// Save XPS document to BMP using options and device
document.save(device, options);

Step 5: Iterate and Save Images

// Iterate through document partitions
for (int i = 0; i < device.getResult().length; i++) {
    // Iterate through partition pages
    for (int j = 0; j < device.getResult()[i].length; j++) {
        // Initialize image output stream
        FileOutputStream imageStream = new FileOutputStream(dataDir + "XPStoBMP" + "_" + (i + 1) + "_" + (j + 1) + ".bmp");
        // Write image
        imageStream.write(device.getResult()[i][j], 0, device.getResult()[i][j].length);
        imageStream.close();
    }
}

Repeat these steps for any additional customization or modification you may need in the conversion process.

Conclusion

Congratulations! You have successfully learned how to convert XPS files to BMP in Java using Aspose.Page. The flexibility and ease of use provided by Aspose.Page make it a valuable tool for handling document conversion tasks.

Frequently Asked Questions

Q: Can I customize the resolution of the BMP images?

A: Yes, you can adjust the resolution by modifying the options.setResolution() parameter in the code.

Q: Is Aspose.Page compatible with different Java versions?

A: Yes, Aspose.Page supports a wide range of Java versions. Ensure you have a compatible version installed.

Q: How can I convert XPS files from a specific page range?

A: Use the options.setPageNumbers() method to specify the page numbers you want to convert.

Q: Are there other output formats supported by Aspose.Page?

A: Yes, Aspose.Page supports various output formats. Refer to the documentation for a comprehensive list.

Q: Where can I find additional help or support?

A: Visit the Aspose.Page Forum for community support and discussions.