GroupDocs.Watermark for .NET

Protect PPT with .NET C# Watermarks

Utilize .NET C# to insert customizable watermarks into PowerPoint presentations, ideal for securing business and academic content.

NuGet Download

Start Free Trial

Effortlessly Generate Watermarks for Ppt Documents

GroupDocs.Watermark for .NET: Advanced Watermarking library for .NET applications. Empower your solution and secure documents with watermarks just in time.

Core Class: Watermarker. The main class of our API is Watermarker. You need to instantiate it before document processing. Do not forget to pass the Ppt file to the constructor as a path or a stream object.
Crafting Your Watermark. The next step is constructing a Watermark object of the desired type. It can be placed not only on a specific document page but also in native document parts like images or headers.
Fine-Tuning Appearance. Set watermark properties such as height and width, top, left, central alignments, fonts and colors, etc.
Applying and Saving. Use the Watermarker method to add a new watermark. Feel free to add as many watermarks as you need. You may save the watermarked document to any location.

Copy

// Generate image watermark in PPT file

// Provide source file path to Watermarker constructor
using (Watermarker watermarker = new Watermarker("input.ppt"))
{
    // Generate image watermark instance with image file
    using (ImageWatermark watermark = new ImageWatermark("watermark.png"))
    {
        watermarker.Add(watermark);
    }
    // Save watermarked PPT result
    watermarker.Save("output.ppt");
}

dotnet add package GroupDocs.Watermark

click to copy

copied

Elevate Your Watermarking Game

Unlock advanced watermarking capabilities with our GroupDocs.Watermark API for .NET. This powerful tool allows for precise customization and application of watermarks across various document types to ensure maximum security and copyright adherence with minimal visual disruption.

Sophisticated Tiling Options

Extend your watermarks across entire documents seamlessly with our tiling options. This feature allows watermarks to cover the full document area, preventing removal and ensuring complete document protection without compromising on design or readability.

Vibrant Color Customization

Add a splash of color to your watermarks! Our API enables full spectrum color customization, allowing you to apply watermarks that perfectly match your corporate branding or document style. Enhance visual appeal while maintaining robust security features.

Enhanced Security Settings

Take document security to the next level with advanced watermark settings. Configure multi-layer watermarks, incorporating both visible and invisible elements, to protect against unauthorized copying and ensure only intended recipients can access critical information.

Generate PowerPoint watermark

This example shows how to add watermark to the PPTX background images

C#


    //  Load PPTX presentation
    var loadOptions = new PresentationLoadOptions();
    using (Watermarker watermarker = new Watermarker("source.pptx", loadOptions))
    {
        //  Set up watermark properties
        TextWatermark watermark = new TextWatermark("Protected image", new Font("Arial", 8));
        watermark.HorizontalAlignment = HorizontalAlignment.Center;
        watermark.VerticalAlignment = VerticalAlignment.Center;
        watermark.RotateAngle = 45;
        watermark.SizingType = SizingType.ScaleToParentDimensions;
        watermark.ScaleFactor = 1;

        //  Watermark slides background
        PresentationContent content = watermarker.GetContent<PresentationContent>();
        foreach (PresentationSlide slide in content.Slides)
        {
            if (slide.ImageFillFormat.BackgroundImage != null)
            {
                slide.ImageFillFormat.BackgroundImage.Add(watermark);
            }
        }

        //  Save processed presentation
        watermarker.save("result.pptx");
    }

GroupDocs.Watermark for .NET

GroupDocs.Watermark for .NET equips .NET C# developers with the tools to integrate watermarks seamlessly into PowerPoint (PPT) files. This API is perfect for adding both visible and invisible watermarks, ensuring presentations are protected against unauthorized use and distribution. With advanced features such as watermark customization for text style, size, color, and opacity, as well as image watermarking capabilities, GroupDocs.Watermark enhances the security and professionalism of your slides. It is especially useful for corporate, educational, and training environments where document integrity is crucial. Fully compatible with all versions of .NET, including .NET Core and .NET Framework.

Learn more