Apply a Slide Master to a Presentation in C#, VB.NET

Every PowerPoint presentation has a slide master which contains all the styles for your slides. You can quickly change the look of your entire presentation by selecting the slide master, and then adopting a theme, adding a background picture or changing the color scheme.

In this article, you will learn how to access and customize the slide master in an existing presentation.

Source File:

Apply a Slide Master to a Presentation in

C#, VB.NET

Detail steps:

Step 1: Load the source file.

Presentation ppt = new Presentation();
ppt.LoadFromFile(@"sample.pptx");

Step 2: Get the first slide master from the presentation.

IMasterSlide masterSlide = ppt.Masters[0];

Step 3: Customize the background of the slide master.

string backgroundPic = "background.png";
RectangleF rect = new RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height);
masterSlide.SlideBackground.Fill.FillType = FillFormatType.Picture;
IEmbedImage image = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, backgroundPic, rect);
masterSlide.SlideBackground.Fill.PictureFill.Picture.EmbedImage = image as IImageData;

Step 4: Change the color scheme.

masterSlide.Theme.ColorScheme.Accent1.Color = Color.Red;
masterSlide.Theme.ColorScheme.Accent2.Color = Color.RosyBrown;
masterSlide.Theme.ColorScheme.Accent3.Color = Color.Ivory;
masterSlide.Theme.ColorScheme.Accent4.Color = Color.Lavender;
masterSlide.Theme.ColorScheme.Accent5.Color = Color.Black;

Step 5: Add an image to the slide master. If you want, you can add any other document elements to slide master so that they can display on each slide.

string logo = "logo.png";
IEmbedImage imageShape = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, logo, new RectangleF(40, 40, 240, 65));
imageShape.Line.FillFormat.FillType = FillFormatType.None;

Step 6: Save the document.

ppt.SaveToFile("result.pptx", FileFormat.Pptx2013);

Result:

Apply a Slide Master to a Presentation in C#, VB.NET

Full code:

[C#]

using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
namespace ApplySlideMaster 
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation ppt = new Presentation();
            ppt.LoadFromFile(@"sample.pptx");

            IMasterSlide masterSlide = ppt.Masters[0];
            string backgroundPic = "background.png";
            string logo = "logo.png";
            RectangleF rect = new RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height);
            masterSlide.SlideBackground.Fill.FillType = FillFormatType.Picture;
            IEmbedImage image = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, backgroundPic, rect);
            masterSlide.SlideBackground.Fill.PictureFill.Picture.EmbedImage = image as IImageData;
            masterSlide.Theme.ColorScheme.Accent1.Color = Color.Red;
            masterSlide.Theme.ColorScheme.Accent2.Color = Color.RosyBrown;
            masterSlide.Theme.ColorScheme.Accent3.Color = Color.Ivory;
            masterSlide.Theme.ColorScheme.Accent4.Color = Color.Lavender;
            masterSlide.Theme.ColorScheme.Accent5.Color = Color.Black;
            IEmbedImage imageShape = masterSlide.Shapes.AppendEmbedImage
            (ShapeType.Rectangle, logo, new RectangleF(40, 40, 240, 65));
            imageShape.Line.FillFormat.FillType = FillFormatType.None;

            ppt.SaveToFile("result.pptx", FileFormat.Pptx2013);

            }
        }
    }

[VB.NET]

Imports Spire.Presentation
Imports Spire.Presentation.Drawing
Imports System.Drawing
Namespace ApplySlideMaster
	Class Program
		Private Shared Sub Main(args As String())
			Dim ppt As New Presentation()
			ppt.LoadFromFile("sample.pptx")

			Dim masterSlide As IMasterSlide = ppt.Masters(0)
			Dim backgroundPic As String = "background.png"
			Dim logo As String = "logo.png"
			Dim rect As New RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height)
			masterSlide.SlideBackground.Fill.FillType = FillFormatType.Picture
			Dim image As IEmbedImage = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, backgroundPic, rect)
			masterSlide.SlideBackground.Fill.PictureFill.Picture.EmbedImage = TryCast(image, IImageData)
			masterSlide.Theme.ColorScheme.Accent1.Color = Color.Red
			masterSlide.Theme.ColorScheme.Accent2.Color = Color.RosyBrown
			masterSlide.Theme.ColorScheme.Accent3.Color = Color.Ivory
			masterSlide.Theme.ColorScheme.Accent4.Color = Color.Lavender
			masterSlide.Theme.ColorScheme.Accent5.Color = Color.Black
			Dim imageShape As IEmbedImage = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, logo, New RectangleF(40, 40, 240, 65))
			imageShape.Line.FillFormat.FillType = FillFormatType.None

			ppt.SaveToFile("result.pptx", FileFormat.Pptx2013)

		End Sub
	End Class
End Namespace

Apply a Slide Master to a Presentation in C#, VB.NET

See Also