Convert PPTX to PDF with Aspose.Slides for Java

introduction_converting_presentation_files_to_pdf_.java

import com.aspose.slides.*;

import java.io.File;

public class PptxToPdfConverter {
    public static void main(String[] args) {
        // Load license (replace with your license file path)
        try {
            License license = new License();
            license.setLicense("Aspose.Slides.Java.lic");
        } catch (Exception e) {
            System.out.println("License could not be loaded: " + e.getMessage());
        }

        // Input and output paths
        String inputPath = "sample.pptx";
        String outputPath = "sample.pdf";

        // Create presentation object
        try (Presentation pres = new Presentation(inputPath)) {

            // Configure PDF export options
            PdfOptions pdfOptions = new PdfOptions();
            pdfOptions.setCompliance(PdfCompliance.PdfA1b); // PDF/A compliance
            pdfOptions.setEmbedFullFonts(true);            // Embed all fonts
            pdfOptions.setJpegQuality(90);                // High quality images

            // Save as PDF
            pres.save(outputPath, SaveFormat.Pdf, pdfOptions);
            System.out.println("Conversion completed. PDF saved at " + outputPath);
        } catch (Exception ex) {
            System.err.println("Error during conversion: " + ex.getMessage());
        }

        // Simple verification
        File pdfFile = new File(outputPath);
        if (pdfFile.exists() && pdfFile.length() > 0) {
            System.out.println("PDF file verified successfully.");
        } else {
            System.out.println("PDF file verification failed.");
        }
    }
}