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Aspose.Slides for Java 25.7 Release Notes

This page contains release notes for Aspose.Slides for Java 25.7

Key	Summary	Category	Related Documentation
SLIDESNET-44925	Add brushProperty:inkEffects rendering support for Ink	Enhancement
SLIDESNET-44976	Integrate AI Presentation Generator into Aspose.Slides	Feature
SLIDESJAVA-39571	Use Aspose.Slides for Net 25.7 features	Enhancement
SLIDESJAVA-39646	Intermittent issues in font substitution	Bug	https://docs.aspose.com/slides/java/custom-font/
SLIDESJAVA-39680	Text is rendered incorrectly when converting a slide to PNG	Bug	https://docs.aspose.com/slides/java/convert-powerpoint-to-png/
SLIDESJAVA-39447	Creating the Area chart using a given series order	Investigation	https://docs.aspose.com/slides/java/powerpoint-charts/
SLIDESJAVA-39657	Incorrect drawing color when saving Ink object from PPTX to image	Bug	https://docs.aspose.com/slides/java/manage-ink/
SLIDESJAVA-38548	Aspose.Slides for Java style errors PDF conversion	Bug	https://docs.aspose.com/slides/java/convert-powerpoint-to-pdf/

Public API Changes

Added New Method: IAIWebClient.CreateConversation

The new method, CreateConversation, have been added to the IAIWebClient interface and implemented in the OpenAIWebClient class. The CreateConversation method returns an IAIConversation instance.

Added New Interface: IAIConversation

The IAIConversation interface represents a conversation instance that preserves the full context across requests, unlike standard AI calls. It exposes a single method:

getResponse(String instruction): Sends a message as part of the ongoing conversation and returns the response.

Added New Enumeration: PresentationContentAmountType

The PresentationContentAmountType is used with the presentation generator feature to specify the amount of content included in the generated presentation. It influences both the number of slides and the level of detail on each slide. Available values are: Brief, Medium, and Detailed.

Added New Methods: SlidesAIAgent.GeneratePresentation and SlidesAIAgent.GeneratePresentationAsync

Both methods and their overloads provide an AI-powered presentation generator that creates presentations from a text description. The overloads include an additional parameter that allows passing a presentation instance to be used as a template, defining the visual style of the generated output.

⚠️ Note: To use the OpenAI API, you need a valid API key and an active OpenAI account with billing enabled.
You must pass your OpenAI API key and preferred model (e.g., "gpt-4o-mini") as constructor parameters.

Code Examples

String prompt = "Generate a presentation on Aspose.Slides for Java, highlighting its key features, common use cases, and the advantages it offers over competing solutions.";

OpenAIWebClient aiWebClient = new OpenAIWebClient("gpt-4o-mini", apiKey, null);
try {
    SlidesAIAgent aiAgent = new SlidesAIAgent(aiWebClient);
    IPresentation pres = aiAgent.generatePresentation(prompt, PresentationContentAmountType.Medium);
    pres.save("Aspose.Slides.pptx", SaveFormat.Pptx);
} finally {
    if (aiWebClient != null) aiWebClient.close();
}

String prompt = "Generate a presentation on Aspose.Slides for Java, highlighting its key features, common use cases, and the advantages it offers over competing solutions.";

OpenAIWebClient aiWebClient = new OpenAIWebClient("gpt-4o-mini", apiKey, null);
try {
    IPresentation template = new Presentation("masterFile.pptx");
    try {
        SlidesAIAgent aiAgent = new SlidesAIAgent(aiWebClient);
        IPresentation pres = aiAgent.generatePresentation(prompt, PresentationContentAmountType.Medium, template);
        pres.save("Aspose.Slides.pptx", SaveFormat.Pptx);
    } finally {
        if (template != null) template.dispose();
    }
} finally {
    if (aiWebClient != null) aiWebClient.close();
}

Public API Changes

Added New Property: InkBrush.InkEffect

The new property, InkEffect, has been added to the InkBrush class. This property allows detection of the visual ink effect (such as Galaxy, Lava, Gold, etc.) associated with a digital ink brush.

The new InkEffectType enumeration defines the following values:

public final class InkEffectType
{
    /**
     * <p>
     * The effect is not defined or is unknown. This value can be used as a default or fallback.
     * </p>
     */
    public static final int NotDefined = -1;

    /**
     * <p>
     * A warm, brownish metallic texture resembling bronze ink.
     * </p>
     */
    public static final int Bronze = 0;

    /**
     * <p>
     * A colorful, shimmering texture resembling a galaxy, with cosmic tones.
     * </p>
     */
    public static final int Galaxy = 1;

    /**
     * <p>
     * A bright, metallic gold texture that gives ink strokes a luxurious appearance.
     * </p>
     */
    public static final int Gold = 2;

    /**
     * <p>
     * A fiery texture resembling molten lava, with red and orange hues.
     * </p>
     */
    public static final int Lava = 3;

    /**
     * <p>
     * A deep blue, fluid-like texture that mimics ocean waves or water-based ink.
     * </p>
     */
    public static final int Ocean = 4;

    /**
     * <p>
     * A colorful, sparkling rainbow glitter effect used for festive or vibrant ink strokes.
     * </p>
     */
    public static final int RainbowGlitter = 5;

    /**
     * <p>
     * A soft pink-gold blend, similar to rose gold, for elegant ink strokes.
     * </p>
     */
    public static final int RoseGold = 6;

    /**
     * <p>
     * A cool, metallic silver texture that simulates classic silver ink.
     * </p>
     */
    public static final int Silver = 7;
}

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

Presentation pres = new Presentation("Presentation.pptx");
try {
    Ink ink = (Ink) pres.getSlides().get_Item(0).getShapes().get_Item(0);
    IInkBrush brush = ink.getTraces()[0].getBrush();
    System.out.println("InkEffects = " + brush.getInkEffect());
} finally {
    if (pres != null) pres.dispose();
}

Added New Static Property: Ink.InkEffectImages

The static property InkEffectImages allows you to define or override images used to render specific ink effects such as Galaxy, Gold, Lava, etc. It provides a customizable mapping between InkEffectType values and image textures used during ink rendering.

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

IImage image = Images.fromFile("image.png");
Ink.getInkEffectImages().addItem(InkEffectType.Galaxy, image);