How to convert PowerPoint Presentations in HTML format using Java.

How to Convert PowerPoint (PPT/PPTX) to HTML using Java

Converting a PowerPoint presentation to HTML can be useful in certain situations. For example, if you want to make your presentations to be viewed on the web, or if you want to improve its search engine optimization and make it more easily accessible for online users. Additionally, converting PowerPoint to HTML enables better editing, security, and searchability on any device using a modern web browser. Therefore, this article demonstrates how to convert PowerPoint PPT or PPTX to HTML programmatically using Java.

The following topics will be covered in this tutorial:

Java PowerPoint to HTML Conversion REST API - SDK Installation

Converting PowerPoint files to HTML can be a huge task, but using GroupDocs.Conversion Cloud REST API in Java, it’s now simple and very efficient. GroupDocs Cloud Java API is a powerful tool for converting various types of documents and images, including PPTX to HTML webpages. It makes it easy to integrate the API into Java applications, allowing you to perform the conversion service quickly and without any additional software. Additionally, the API maintains the original text format and layouts of the documents during the conversion process, which can be useful for preserving the integrity of the original documents. The API also supports a wide range of file formats, allowing you to convert not only PowerPoint, but also PDFs, Word, Excel, HTML pages, CAD files, raster images, etc.

You can download the API’s JAR file or install using Maven configurations. Add repository and dependency to your project’s POM.xml. Below are the instructions for Maven:

Maven Repository:

<repository>
    <id>groupdocs-artifact-repository</id>
    <name>GroupDocs Artifact Repository</name>
    <url>https://repository.groupdocs.cloud/repo</url>
</repository>

Maven Dependency:

 <dependency>
    <groupId>com.groupdocs</groupId
    <artifactId>groupdocs-conversion-cloud</artifactId>
    <version>23.4</version>
    <scope>compile</scope>
</dependency>

Sign up for a GroupDocs account to get the application ID and application Secret from the dashboard before you start following the steps and available code snippets. Please enter the code shown below once you have your ID and secret:

How to Convert PowerPoint to HTML File in Java using REST API

To convert a PowerPoint PPT or PPTX file to HTML programmatically in Java using GroupDocs.Conversion Cloud REST API, you will need to perform the following steps:

  • Upload the PowerPoint presentation to the Cloud
  • Convert PowerPoint slides to HTML in Java
  • Download the converted file

Upload the File

Firstly, upload the PowerPoint document to the cloud storage using the code snippet given below:

As a result, the uploaded PowerPoint file will be available in the files section of your dashboard on the cloud.

Convert PowerPoint PPTX to HTML using Java

This section is about how to convert a PPT or PPTX to an HTML document programmatically in Java by following the steps below:

  • Firstly, create an instance of ConvertApi class.
  • Secondly, create an instance of the ConvertSettings class.
  • Thirdly, provide the cloud storage name.
  • Then, set the input PowerPoint file path and the output file format to “html”.
  • Now, set the output HTML file path.
  • Next, create a ConvertDocumentRequest class instance and pass settings parameter.
  • Lastly, invoke the convertDocument() method with ConvertDocumentRequest parameter.

The following code snippet shows how to export PowerPoint to HTML in Java using REST API:

How to convert PowerPoint Presentations in HTML format using Java.

Convert PowerPoint PPTX to HTML document in Java

Download the Converted File

The above code sample will save the converted HTML document to the cloud. You can download the converted HTML file using the following code snippet:

In the next section, we will turn PowerPoint into HTML with the help of more advanced settings using Java REST API.

Convert PowerPoint Slides to HTML Online in Java using Advanced Options

In this section, we will convert and save PowerPoint as an HTML web page using some advanced settings programmatically in Java by following the steps given below:

  • Firstly, create an instance of ConvertApi class.
  • Secondly, create an instance of the ConvertSettings class.
  • Thirdly, provide the cloud storage name.
  • Next, set the input PowerPoint file path and output file format as “html”.
  • Then, create an instance of the HtmlConvertOptions class.
  • Next, set various convert options like setFromPage, setPagesCount, setFixedLayout, etc.
  • Now, set convert options and the output file path using ConvertSettings instance.
  • Create ConvertDocumentRequest class instance and pass settings parameters.
  • Finally, call the convertDocument() method and pass ConvertDocumentRequest parameter.

Please follow the steps mentioned earlier to upload and download the files. The following code example shows how to convert PowerPoint PPTX to HTML documents using advanced settings:

How to convert PowerPoint Presentations in HTML format using Java.

Convert PowerPoint PPTX to HTML document in Java

Last but not least, don’t let the process of converting PowerPoint files to HTML hold you back, try GroupDocs.Conversion Cloud REST API today and experience the ease and simplicity of converting your presentations to HTML in Java.

Free Online PowerPoint to HTML Converter

How to convert PowerPoint presentations to HTML files online for free? Please try an online PowerPoint PPTX to HTML converter to create HTML from a presentation file for free. This converter is developed using the above-mentioned PowerPoint to HTML REST API.

Conclusion

This brings us to the end of this blog post. The following is what you have learned from this article:

  • how to change PPTX to an HTML page in Java programmatically;
  • how to convert a PowerPoint PPT to an HTML file using some advanced settings in Java;
  • programmatically upload the PowerPoint document to the cloud and then download the converted HTML file from the cloud;
  • and convert PowerPoint to HTML online using a free PowerPoint to HTML converter.

Moreover, we also provide an API Reference section that lets you visualize and communicate with our APIs directly through the browser. Java SDK’s complete source code is freely available on Github. Please check the GroupDocs.Conversion Cloud SDK for Java Examples here. Additionally, we suggest you follow our Getting Started guide for detailed steps and usage.

Finally, we keep writing new blog articles on different file formats and conversions using REST API. So, please get in touch for regular updates.

Ask a question

If you have any questions regarding PowerPoint to HTML converter API, please do not hesitate to contact us on the free support forum.

FAQs

What is the best way to convert a PowerPoint PPT or PPTX file to HTML?

Using a Java library such as GroupDocs.Conversion Cloud REST API is the best way to convert a PowerPoint PPT or PPTX file to HTML. It is a cloud-based API that supports various file formats and can be integrated into your Java application to convert PowerPoint to HTML documents.

How can I use Java to convert PowerPoint files to HTML?

You can convert PowerPoint PPT to HTML using Java SDK. Firstly, create an instance of ConvertApi, set the values of the ConvertSettings, and invoke the convertDocument method with ConvertDocumentRequest to save PPT as an HTML file.

How can I convert a PowerPoint file to HTML online for free?

Online PowerPoint PPT to HTML converter allows you to convert PowerPoint to HTML with formatting and layout preservation. Once the online conversion of the PPT presentation to HTML is completed, you can instantly download the converted HTML file to your system. Please follow the step-by-step instructions given below for conversion to perform the conversion:

  • Open a free PowerPoint to HTML converter online.
  • Now, click in the file drop area to upload a PowerPoint file or drag & drop a PowerPoint file.
  • Next, click on the Convert Now button. Free online PowerPoint to HTML converter will transform PPT file into HTML.
  • The download link of the output HTML file will be available instantly after converting the PowerPoint slides.

Can you recommend any open-source Java library for converting PowerPoint to HTML?

You can download the PPT presentation to HTML converter Java library to process, manipulate, and create HTML from PowerPoint slides in Java programmatically.

Is there a way to convert a PowerPoint file to HTML in Windows?

Please visit this link to download an offline PowerPoint to HTML converter for Windows. This free PowerPoint to HTML converter can be used to export PowerPoint to HTML with links and multimedia on Windows quickly, with a single click.

See Also

If you want to learn more about related topics, we recommend reading the articles listed below: