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Aspose.Slides for Node.js via Java 26.6 Release Notes

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

Key	Summary	Category
SLIDESNODEJS-124	Use Aspose.Slides for Java 26.6 features	Enhancement

Public API Changes

Added New Enumeration: CompressionLevel

The new CompressionLevel enumeration has been added. This enumeration specifies ZIP compression levels for OpenXML file.

public final class CompressionLevel
{
    /**
     * <p>
     * No compression is applied. Files are stored as-is.
     * </p>
     */
    public static final int None = 0;

    /**
     * <p>
     * Fastest compression with the lowest compression ratio.
     * </p>
     */
    public static final int Level1 = 1;

    /**
     * <p>
     * Faster compression with slightly better compression ratio than {@link CompressionLevel#Level1}.
     * </p>
     */
    public static final int Level2 = 2;

    /**
     * <p>
     * Provides better compression than {@link CompressionLevel#Level2} with moderate performance impact.
     * </p>
     */
    public static final int Level3 = 3;

    /**
     * <p>
     * Provides better compression than {@link CompressionLevel#Level3}.
     * </p>
     */
    public static final int Level4 = 4;

    /**
     * <p>
     * Provides improved compression over {@link CompressionLevel#Level4} with additional processing time.
     * </p>
     */
    public static final int Level5 = 5;

    /**
     * <p>
     * Standard compression, offering a good balance between compression speed and file size.
     * The default compression level.
     * </p>
     */
    public static final int Level6 = 6;

    /**
     * <p>
     * Provides higher compression than {@link CompressionLevel#Level6} with slower processing.
     * </p>
     */
    public static final int Level7 = 7;

    /**
     * <p>
     * Provides higher compression than {@link CompressionLevel#Level7}.
     * </p>
     */
    public static final int Level8 = 8;

    /**
     * <p>
     * Maximum compression. Produces the smallest file size with the slowest processing speed.
     * </p>
     */
    public static final int Level9 = 9;
}

Added New Property: IPptxOptions.CompressionLevel

The new CompressionLevel property has been added to the IPptxOptions interface and implemented in the PptxOptions class. This property allows you to control the compression level of the presentation document.

Usage example

The following example demonstrates how to save a PPTX presentation without compression:

const pres = new aspose.slides.Presentation("demo.pptx");
const pptxOptions = new aspose.slides.PptxOptions();
pptxOptions.setCompressionLevel(aspose.slides.CompressionLevel.None);
pres.save("demo-out.pptx", aspose.slides.SaveFormat.Pptx, pptxOptions);
pres.dispose();

This example shows how to save a PPTX presentation with maximum compression:

const pres = new aspose.slides.Presentation("demo.pptx");
const pptxOptions = new aspose.slides.PptxOptions();
pptxOptions.setCompressionLevel(aspose.slides.CompressionLevel.Level9);
pres.save("demo-level9.pptx", aspose.slides.SaveFormat.Pptx, pptxOptions);
pres.dispose();