PowerPoint files, from Node.js.

const aspose = { slides: require("aspose.slides.via.java") };

const presentation = new aspose.slides.Presentation("quarterly.pptx");
try {
    const pdfOptions = new aspose.slides.PdfOptions();
    pdfOptions.setSufficientResolution(300);
    pdfOptions.setTextCompression(aspose.slides.PdfTextCompression.Flate);
    pdfOptions.setCompliance(aspose.slides.PdfCompliance.Pdf15);

    presentation.save("quarterly.pdf", aspose.slides.SaveFormat.Pdf, pdfOptions);
    presentation.save("quarterly.html", aspose.slides.SaveFormat.Html);
} finally {
    presentation.dispose();
}

const aspose = { slides: require("aspose.slides.via.java") };
const java = require("java");

const presentation = new aspose.slides.Presentation("quarterly.pptx");
try {
    const size = java.newInstanceSync("java.awt.Dimension", 960, 540);

    for (let index = 0; index < presentation.getSlides().size(); index++) {
        const slide = presentation.getSlides().get_Item(index);
        const image = slide.getImage(size);
        try {
            image.save("slide-" + (index + 1) + ".png", aspose.slides.ImageFormat.Png);
        } finally {
            image.dispose();
        }
    }
} finally {
    presentation.dispose();
}

const aspose = { slides: require("aspose.slides.via.java") };

const quarters = ["Q1", "Q2", "Q3", "Q4"];
const revenue = [412, 468, 501, 587];

const presentation = new aspose.slides.Presentation();
try {
    const slide = presentation.getSlides().get_Item(0);
    const chart = slide.getShapes().addChart(
        aspose.slides.ChartType.ClusteredColumn, 40, 40, 640, 400);

    chart.setTitle(true);
    chart.getChartTitle().addTextFrameForOverriding("Revenue by quarter");

    const chartData = chart.getChartData();
    const workbook = chartData.getChartDataWorkbook();
    const sheet = 0;

    chartData.getSeries().clear();
    chartData.getCategories().clear();
    chartData.getSeries().add(workbook.getCell(sheet, 0, 1, "Revenue"), chart.getType());

    const series = chartData.getSeries().get_Item(0);
    for (let row = 0; row < quarters.length; row++) {
        chartData.getCategories().add(workbook.getCell(sheet, row + 1, 0, quarters[row]));
        series.getDataPoints().addDataPointForBarSeries(
            workbook.getCell(sheet, row + 1, 1, revenue[row]));
    }

    presentation.save("revenue.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    presentation.dispose();
}

const aspose = { slides: require("aspose.slides.via.java") };

const presentation = new aspose.slides.Presentation("quarterly.pptx");
try {
    presentation.getProtectionManager().encrypt("open-password");
    presentation.save("quarterly-encrypted.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    presentation.dispose();
}

const loadOptions = new aspose.slides.LoadOptions();
loadOptions.setPassword("open-password");

const reopened = new aspose.slides.Presentation("quarterly-encrypted.pptx", loadOptions);
try {
    reopened.getProtectionManager().setWriteProtection("edit-password");
    reopened.save("quarterly-locked.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    reopened.dispose();
}

const aspose = { slides: require("aspose.slides.via.java") };

const destination = new aspose.slides.Presentation("intro.pptx");
const source = new aspose.slides.Presentation("appendix.pptx");
try {
    for (let index = 0; index < source.getSlides().size(); index++) {
        destination.getSlides().addClone(source.getSlides().get_Item(index));
    }
    destination.save("merged.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    source.dispose();
    destination.dispose();
}