Specifying PDF Save Options for EPUB to PDF

Introduction

Aspose.HTML for Java is a powerful tool for working with HTML and EPUB documents. In this step-by-step guide, we will walk you through the process of converting an EPUB file to PDF using Aspose.HTML for Java. Whether you are a seasoned developer or just getting started, this tutorial will provide you with the knowledge and skills necessary to perform this task efficiently.

Prerequisites

Before we begin, ensure that you have the following prerequisites in place:

• Java Development Environment: You must have a Java development environment set up on your system.

• Aspose.HTML for Java: Download and install the Aspose.HTML for Java library. You can find the library and related documentation on the website.

• EPUB File: You’ll need an EPUB file that you want to convert to PDF.

Now, let’s dive into the step-by-step guide for converting EPUB to PDF using Aspose.HTML for Java.

Step 1: Open the EPUB File

To begin, open an existing EPUB file for reading. You can use a FileInputStream to achieve this. Here’s the code for this step:

try (java.io.FileInputStream fileInputStream = new java.io.FileInputStream(Resources.input("input.epub"))) {
    // Your code for the next steps will go here.
}

Step 2: Define PDF Save Options

Create an instance of PdfSaveOptions with custom page size and background color. You can configure the page setup according to your requirements. Here’s how you can do it:

com.aspose.html.saving.PdfSaveOptions options = new com.aspose.html.saving.PdfSaveOptions();
com.aspose.html.rendering.PageSetup pageSetup = new com.aspose.html.rendering.PageSetup();
com.aspose.html.drawing.Page anyPage = new com.aspose.html.drawing.Page();
anyPage.setSize(new com.aspose.html.drawing.Size(
    com.aspose.html.drawing.Length.fromPixels(3000),
    com.aspose.html.drawing.Length.fromPixels(1000))
);
pageSetup.setAnyPage(anyPage);
options.setPageSetup(pageSetup);
options.setBackgroundColor(com.aspose.html.drawing.Color.getAliceBlue());

Step 3: Convert EPUB to PDF

Now, call the ConvertEPUB method to convert the EPUB file to PDF. Specify the input stream, PDF save options, and the output location. Here’s how it’s done:

com.aspose.html.converters.Converter.convertEPUB(
    fileInputStream,
    options,
    Resources.output("output.pdf")
);

Congratulations! You have successfully converted an EPUB file to PDF using Aspose.HTML for Java. You can now access the converted PDF file at the specified output location.

Complete Source Code

Specifying PDF Save Options for EPUB to PDF
        // Open an existing EPUB file for reading.
        try (java.io.FileInputStream fileInputStream = new java.io.FileInputStream(Resources.input("input.epub"))) {
            // Create an instance of the PdfSaveOptions with a custom page-size and a background-color.
            com.aspose.html.saving.PdfSaveOptions options = new com.aspose.html.saving.PdfSaveOptions();
            com.aspose.html.rendering.PageSetup pageSetup = new com.aspose.html.rendering.PageSetup();
            com.aspose.html.drawing.Page anyPage = new com.aspose.html.drawing.Page();
            anyPage.setSize(new com.aspose.html.drawing.Size(
                    com.aspose.html.drawing.Length.fromPixels(3000),
                    com.aspose.html.drawing.Length.fromPixels(1000))
            );
            pageSetup.setAnyPage(anyPage);
            options.setPageSetup(pageSetup);
            options.setBackgroundColor(com.aspose.html.drawing.Color.getAliceBlue());
            // Call the ConvertEPUB method to convert the EPUB to PDF.
            com.aspose.html.converters.Converter.convertEPUB(
                    fileInputStream,
                    options,
                    Resources.output("output.pdf")
            );
        }

Conclusion

In this tutorial, we’ve learned how to use Aspose.HTML for Java to convert EPUB files to PDF format. This versatile library provides developers with powerful tools for document manipulation. By following the steps outlined in this guide, you can seamlessly integrate EPUB to PDF conversion into your Java applications.

Frequently Asked Questions (FAQs)

Is Aspose.HTML for Java a free library?

Aspose.HTML for Java is a commercial library, but you can obtain a free trial version from their website.

What EPUB formats are supported for conversion?

Aspose.HTML for Java supports the conversion of various EPUB formats, ensuring compatibility with most EPUB documents.

Can I customize the PDF output further?

Yes, you can customize the PDF output by adjusting the page setup, background color, and other settings in the PdfSaveOptions.

Are there any limitations to the trial version of Aspose.HTML for Java?

The trial version may have some limitations, so it’s recommended to check the documentation for details.

Where can I get support for Aspose.HTML for Java?

You can find answers to your questions and seek support on the Aspose.HTML forum.