# View PPTX in Java

> View PPTX files in Java. Use Aspose.Slides for Java to open PowerPoint presentation files and save them as HTML.

Source: https://products.aspose.com/slides/java/viewer/pptx/
Updated: 2026-07-09



## View PPTX using Aspose.Slides

[**Aspose.Slides for Java**](/slides/java/) is a Java library for opening, viewing, editing, and converting presentation files. You can load PPTX files and save them as HTML for viewing in a browser.

## View PPTX in Java

Using [**Aspose.Slides for Java**](/slides/java/), you can load a PPTX presentation and save it as responsive HTML with a few lines of code.

### Java code for viewing PPTX

```java
Presentation presentation = new Presentation("presentation.pptx");
try {
    ResponsiveHtmlController controller = new ResponsiveHtmlController();
    HtmlOptions htmlOptions = new HtmlOptions();
    htmlOptions.setHtmlFormatter(HtmlFormatter.createCustomFormatter(controller));

    presentation.save("index.html", SaveFormat.Html, htmlOptions);
} finally {
    presentation.dispose();
}
```

## How to view PPTX in Java

Install **Aspose.Slides for Java**. See [**Installation**](https://docs.aspose.com/slides/java/installation/).

Add the library as a reference in your project.

Load the `PPTX` file with the `Presentation` class.

Create a `ResponsiveHtmlController` object for responsive HTML output.

Create an `HtmlOptions` object and set the `HtmlFormatter` property.

Save the PPTX presentation as HTML with `SaveFormat.Html`.

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