Often times developers have to convert OTT file to PPSX programmatically. By using the File Automation Java libraries Aspose.Total for Java you can automate the rendering process in a few simple steps. You can load your OTT file by using Aspose.Words for Java and convert it to HTML. After that by using powerful PowerPoint manipulation Java API Aspose.Slides for Java you can create a new Presentation, write HTML content in it, and save it as PPSX.
How to Convert OTT to PPSX via Java
OTT File Conversion in Java
For OTT to PPSX file conversion, you can easily use Aspose.Total for Java directly from a Maven based project and include libraries in your pom.xml.
Alternatively, you can get a ZIP file from downloads .
Convert OTT to PPSX with Watermark via Java
Using the API, you can also perform OTT file to PPSX conversion with watermark. In order to add a watermark to your PPSX document, you can first export OTT to HTML and write HTML content in Presentation object. After that to add a watermark, you can add text using addTextFrame, set all the relevant options like color, fillType and more and can save the document to PPSX.