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Aspose.Slides for Node.js via Java 25.12 Release Notes

This page contains release notes for Aspose.Slides for Node.js via Java

Key	Summary	Category
SLIDESNODEJS-112	Use Aspose.Slides for Java 25.12 features	Enhancement
SLIDESNODEJS-147	Update java package to support Node.js 24	Enhancement

Public API Changes

Updates to Support Node.js 24

In version 25.12, we have added support for the latest Node.js 24. At the same time, following the Node.js lifecycle, we have discontinued support for version 18.

Added New Property: IBasePortionFormat.SpellCheck

The new property, SpellCheck, has been added to the IBasePortionFormat interface and implemented in the corresponding text formatting classes. This enhancement allows developers to enable or disable spell checking for individual text portions within a presentation.

The following code sample demonstrates how to use this property:

let pres = null;
try {
	pres = new aspose.slides.Presentation("input.pptx");
	
	// Access the first portion of text inside the first shape on the first slide
	const slide = pres.getSlides().get_Item(0);
	const shape = slide.getShapes().get_Item(0);
	const paragraph = shape.getTextFrame().getParagraphs().get_Item(0);
	const portion = paragraph.getPortions().get_Item(0);
	
	// Enable spell checking for this text portion
	portion.getPortionFormat().setSpellCheck(true);
	
	// Save the modified presentation
	pres.save("output-with-spellcheck.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
	if (pres !== null) {
		pres.dispose();
	}
}

Added New Property: DrawingGuides

The new DrawingGuides property has been added to the following interfaces and classes:

IMasterSlide
IMasterNotesSlide
IMasterHandoutSlide
ILayoutSlide
MasterSlide
MasterNotesSlide
MasterHandoutSlide
LayoutSlide

This property returns a collection of adjustable drawing guides for the slide.

The following code snippet shows how to add the new vertical drawing guide to the first master slide:

let pres = null;
try {
    pres = new aspose.slides.Presentation();

    const slideSize = pres.getSlideSize().getSize();
    const guides = pres.getMasters().get_Item(0).getDrawingGuides();
    
    // Adding the new vertical drawing guide to the right of the slide center
    guides.add(java.newByte(aspose.slides.Orientation.Vertical), slideSize.getWidth() / 2 + 20.0);
    
    pres.save("MasterSlideDrawingGuides_out.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
	if (pres !== null) {
		pres.dispose();
	}
}

This code snippet demonstrates how to print the drawing guides of the first master slide:

let pres = null;
try {
    pres = new aspose.slides.Presentation("MasterSlideDrawingGuides_out.pptx");
    
    const guides = pres.getMasters().get_Item(0).getDrawingGuides();
    
    for (let i = 0; i < guides.getCount(); i++) {
        const drawingGuide = guides.get_Item(i);
        console.log(drawingGuide.getOrientation() + " " + 
                   drawingGuide.getPosition() + " " + 
                   drawingGuide.getColor());
    }
    
} finally {
    if (pres != null) pres.dispose();
}

Added New Property: IDrawingGuide.Color

The Color property has been added to the IDrawingGuide interface and implemented in the DrawingGuide class. It allows developers to customize the color of drawing guides.

The following code snippet shows how to change the color of the first drawing guide of the master slide:

let pres = null;
try {
    pres = new aspose.slides.Presentation("MasterSlideDrawingGuides_out.pptx");
    
	const javaColor = java.import('java.awt.Color');
    const guides = pres.getMasters().get_Item(0).getDrawingGuides();
    guides.get_Item(0).setColor(javaColor.GREEN);
    
    pres.save("MasterSlideDrawingGuides_ForestGreen.pptx", aspose.slides.SaveFormat.Pptx);
    
} finally {
    if (pres != null) pres.dispose();
}

Added New Methods: Convert.ToJpeg, ToPng and ToTiff

New convenience methods ToJpeg, ToPng, and ToTiff have been added to the Convert class. These methods simplify converting presentations into sets of raster images.

The following code snippet shows how to convert the input presentation to a set of JPEG images:

let pres = null;
try {
    pres = new aspose.slides.Presentation("pres.pptx");
    aspose.slides.Convert.toJpeg(pres, "presImage.jpeg");
} finally {
    if (pres != null) pres.dispose();
}

This code snippet demonstrates how to convert the input presentation to a set of JPEG images of a given size:

let pres = null;
try {
    pres = new aspose.slides.Presentation("pres.pptx");
    aspose.slides.Convert.toJpeg(pres, "presImage.jpeg", java.newInstanceSync("java.awt.Dimension", 720, 540));
} finally {
    if (pres != null) pres.dispose();
}

This code snippet shows how to convert the input presentation to a set of PNG images in the Notes mode:

let pres = null;
try {
    const layoutOptions = new aspose.slides.NotesCommentsLayoutingOptions();
    layoutOptions.setNotesPosition(aspose.slides.NotesPositions.BottomTruncated);
    
    const options = new aspose.slides.RenderingOptions();
    options.setSlidesLayoutOptions(layoutOptions);
    
    pres = new aspose.slides.Presentation("pres.pptx");
    aspose.slides.Convert.toPng(pres, "pres.png", 2.0, options);
} finally {
    if (pres != null) pres.dispose();
}

The following code shows how to convert the input presentation to a set of TIFF images:

let pres = null;
try {
    pres = new aspose.slides.Presentation("pres.pptx");
    aspose.slides.Convert.toTiff(pres, "presImage.tiff");
} finally {
    if (pres != null) pres.dispose();
}

This code snippet shows how to convert the input presentation to a set of the compressed TIFF images in the Notes mode:

let pres = null;
try {
    const layoutOptions = new aspose.slides.NotesCommentsLayoutingOptions();
    layoutOptions.setNotesPosition(aspose.slides.NotesPositions.BottomTruncated);
    
    const options = new aspose.slides.TiffOptions();
    options.setCompressionType(aspose.slides.TiffCompressionTypes.CCITT3);
    options.setSlidesLayoutOptions(layoutOptions);
    
    pres = new aspose.slides.Presentation("pres.pptx");
    aspose.slides.Convert.toTiff(pres, "pres.tiff", options, false);
} finally {
    if (pres != null) pres.dispose();
}

Added New Class: Merger

The new Merger class provides API methods for merging multiple presentations of the same format into a single output file.

API Overview

public class Merger
{
    public static void process(String[] inputFileNames, String outputFileName)
    public static void process(String[] inputFileNames, String outputFileName, ISaveOptions options)
	public static void process(final String[] inputFileNames, java.io.OutputStream outputStream)
	public static void process(final String[] inputFileNames, java.io.OutputStream outputStream, final ISaveOptions options)
}

The following code snippet shows how to merge the set of input presentations of the same format into a single presentation file:

aspose.slides.Merger.process(["pres1.ppt", "pres2.ppt"], "merged.ppt");

This code snippet demonstrates how to merge the set of input presentations into the PPTX presentation without generation of the new thumbnail:

const options = new aspose.slides.PptxOptions();
options.setRefreshThumbnail(false);
aspose.slides.Merger.process(["pres1.pptx", "pres2.pptx"], "merged.pptx", options);

The following code snippet shows how to merge the set of input presentations of the same format and save to the memory stream:

const stream = java.newInstanceSync("java.io.ByteArrayOutputStream");
aspose.slides.Merger.process(["pres1.pptx", "pres2.pptx"], stream);