Aspose.Slides for Node.js via Java 25.5 Release Notes

Public API Changes

Added New Properties: IHtml5Options.SlidesLayoutOptions, ISwfOptions.SlidesLayoutOptions

The new property, SlidesLayoutOptions, has been added to the IHtml5Options interface and implemented in the Html5Options class. This property allows you to control the mode in which slides are placed on the page when exporting a presentation to the HTML5 format.

The following code sample demonstrates how to use the SlidesLayoutOptions property:

let pres = new aspose.slides.Presentation("pres.pptx");
try {
    let handoutLayoutingOptions = new aspose.slides.HandoutLayoutingOptions();
    handoutLayoutingOptions.setHandout(aspose.slides.HandoutType.Handouts4Horizontal);

    let options = new aspose.slides.Html5Options();
    options.setSlidesLayoutOptions(handoutLayoutingOptions);

    pres.save("pres.html", aspose.slides.SaveFormat.Html5, options);
} finally {
    if (pres != null) pres.dispose();
}

The following code sample demonstrates how to use this new property instead of the obsolete NotesCommentsLayouting property:

let pres = new aspose.slides.Presentation("pres.pptx");
try {
    let notesCommentsLayoutingOptions = new aspose.slides.NotesCommentsLayoutingOptions();
    notesCommentsLayoutingOptions.setNotesPosition(aspose.slides.NotesPositions.BottomTruncated);

    let options = new aspose.slides.Html5Options();
    options.setOutputPath("test_pptx");
    options.setSlidesLayoutOptions(notesCommentsLayoutingOptions);

    pres.save("index.html", aspose.slides.SaveFormat.Html5, options);
} finally {
    if (pres != null) pres.dispose();
}

The new property, SlidesLayoutOptions, has also been added to the ISwfOptions interface and implemented in the SwfOptions class. This property allows you to control the mode in which slides are placed on the page when exporting a presentation to the SWF format. Please note that this property does not support assigning instances of the HandoutLayoutingOptions type.

The following code sample demonstrates how to use the SlidesLayoutOptions property:

let pres = new aspose.slides.Presentation("pres.pptx");
try {
    let notesCommentsLayoutingOptions = new aspose.slides.NotesCommentsLayoutingOptions();
    notesCommentsLayoutingOptions.setCommentsPosition(aspose.slides.CommentsPositions.Right);
    
    let options = new aspose.slides.SwfOptions();
    options.setSlidesLayoutOptions(notesCommentsLayoutingOptions);
    
    pres.save("pres.swf", aspose.slides.SaveFormat.Swf, options);
} finally {
    if (pres != null) pres.dispose();
}

Markdown Export Enhancements

Three new properties have been added to the MarkdownSaveOptions class, providing greater control over the formatting of exported Markdown documents:

• RemoveEmptyLines – Removes empty or whitespace-only lines for cleaner output.
• HandleRepeatedSpaces – Specifies how repeated space characters are preserved to maintain visual alignment.
• SlideNumberFormat – Allows users to customize the format of slide number headers in the exported Markdown.

The following code sample demonstrates how to use these properties:

let presentation = new aspose.slides.Presentation("pres.pptx");
try {
    let options = new aspose.slides.MarkdownSaveOptions();
    options.setRemoveEmptyLines(true);
    options.setHandleRepeatedSpaces(aspose.slides.HandleRepeatedSpaces.AlternateSpacesToNbsp);
    options.setSlideNumberFormat("## Slide {0} -");
    options.setShowSlideNumber(true);
    options.setExportType(aspose.slides.MarkdownExportType.TextOnly);
    options.setFlavor(aspose.slides.Flavor.Default);
    
    presentation.save("output.md", aspose.slides.SaveFormat.Md, options);
} finally {
    if (presentation != null) presentation.dispose();
}

Added New Methods: ISlideCollection.InsertFromHtml

The new methods, insertFromHtml, have been added to the ISlideCollection interface and implemented in the SlideCollection class. These methods allow you to control how HTML content is inserted - either starting from a new slide or from a slide at a specified index.

• ISlide[] insertFromHtml(int index, String htmlText, boolean useSlideWithIndexAsStart)
• ISlide[] insertFromHtml(int index, String htmlText, IExternalResourceResolver resolver, String uri, boolean useSlideWithIndexAsStart)
• ISlide[] insertFromHtml(int index,java.io.InputStream htmlStream, boolean useSlideWithIndexAsStart)
• ISlide[] insertFromHtml(int index,java.io.InputStream htmlStream, IExternalResourceResolver resolver, String uri, boolean useSlideWithIndexAsStart)

The following code sample demonstrates how to insert HTML content into the presentation slide collection, starting from the empty space on the slide with index equal to 2:

let presentation = new aspose.slides.Presentation("presentation.pptx");
try {
	const htmlStream = java.newInstanceSync('java.io.FileInputStream', "content.html");
    presentation.getSlides().insertFromHtml(2, htmlStream, true);
    htmlStream.close();

    presentation.save("output.pptx", aspose.slides.SaveFormat.Pptx);
} finally {
    if (presentation != null) presentation.dispose();
}

Added New Property: PictureFrame.IsCameo

The new property, isCameo, has been added to the PictureFrame class. This property allows you to detect whether a picture frame is a Cameo object - a special shape in PowerPoint linked to the user’s camera feed.

The following code sample demonstrates how to use the isCameo property:

let pres = new aspose.slides.Presentation("presentation.pptx");
try {
    let shape = pres.getSlides().get_Item(0).getShapes().get_Item(0);
    if (shape != null)
    {
        console.log("IsCameo: " + shape.isCameo());
    }
} finally {
    if (pres != null) pres.dispose();
}

Marked as Obsolete Properties: IHtml5Options.NotesCommentsLayouting, ISwfOptions.NotesCommentsLayouting

The properties IHtml5Options.NotesCommentsLayouting, Html5Options.NotesCommentsLayouting, ISwfOptions.NotesCommentsLayouting, and SwfOptions.NotesCommentsLayouting have been marked as obsolete and will be removed after the release of version 25.8.

Marked as Obsolete Interface: INotesCommentsLayoutingOptions

The interface INotesCommentsLayoutingOptions has been marked as obsolete and will be removed after the release of version 25.8.