Convert PUB to PPT PPTX PowerPoint Presentation Programmatically in Java

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You can find more details at: Convert PUB to PPT or PPTX in Java

Convert PUB to PPTX in Java.java

// Specify path for input Publisher file
String fileName = "Test.pub";

// Initialize ByteArrayOutputStream to hold intermediary PDF file.
final ByteArrayOutputStream os = new ByteArrayOutputStream();

// Initialize Pub Parser for the PUB file
IPubParser parser = PubFactory.createParser(fileName);

// Parse the Publisher file
com.aspose.pub.Document doc = parser.parse();

// Convert PUB to PDF file and save output into the stream
PubFactory.createPdfConverter().convertToPdf(doc, os);

// Load the intermediary PDF document
Document pdfDocument = new Document(os.toByteArray());

// Convert or Export the file to PPTX format
pdfDocument.save("Output.pptx", new PptxSaveOptions());