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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:
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:
Full code:
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);
}
}
}
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
Vertically align the text in table cell on Presentation slides
2018-04-25 01:23:05 Written by zaki zouSpire.Presentation supports to align text vertically in a table cell on the presentation slides. In this article, we will show you how to use C# to align the text in table cell and set the text direction. Firstly, view the screenshot on Microsoft PowerPoint of the vertical alignment and the text direction:
Detail steps:
Step 1: Create a new PowerPoint document and load the sample document from file.
Presentation ppt = new Presentation();
ppt.LoadFromFile("Sample1.pptx",FileFormat.Pptx2010);
Step 2: Get the table shape from the first presentation slide.
ITable table = null;
foreach (IShape shape in ppt.Slides[0].Shapes)
{
if (shape is ITable)
{
table = (ITable)shape;
Step 3: Aligning the text vertically and set the text direction.
table[i, 0].TextAnchorType = TextAnchorType.Center; table[i, 0].VerticalTextType = VerticalTextType.Vertical270; table[i, 1].TextAnchorType = TextAnchorType.Center; table[i, 1].VerticalTextType = VerticalTextType.Horizontal; table[i, 2].TextAnchorType = TextAnchorType.Center; table[i, 2].VerticalTextType = VerticalTextType.Vertical;
Step 4: Save the document to file.
ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
Effective screenshot after set the vertical alignment and the text direction:
Full codes of vertical align the text and set the text direction.:
using Spire.Presentation;
namespace AlignText
{
class Program
{
static void Main(string[] args)
{
Presentation ppt = new Presentation();
ppt.LoadFromFile("Sample1.pptx", FileFormat.Pptx2010);
ITable table = null;
foreach (IShape shape in ppt.Slides[0].Shapes)
{
if (shape is ITable)
{
table = (ITable)shape;
for (int i = 0; i < table.ColumnsList.Count; i++)
{
table[i, 0].TextAnchorType = TextAnchorType.Center;
table[i, 0].VerticalTextType = VerticalTextType.Vertical270;
table[i, 1].TextAnchorType = TextAnchorType.Center;
table[i, 1].VerticalTextType = VerticalTextType.Horizontal;
table[i, 2].TextAnchorType = TextAnchorType.Center;
table[i, 2].VerticalTextType = VerticalTextType.Vertical;
}
}
}
ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
}
}
}
Set and Get Alternative Text (Title and Description) of PowerPoint Shapes in C#
2018-04-23 06:23:31 Written by zaki zouWith Spire.Presentation, we can programmatically set the Alternative Text for PowerPoint shapes along with get the Alternative Text of PowerPoint shapes. This article demonstrates how we can use Spire.Presentation to accomplish this function.
Detail steps:
Step 1: Instantiate a Presentation object and load the PowerPoint file.
Presentation ppt = new Presentation();
ppt.LoadFromFile("Input.pptx");
Step 2: Get the first slide.
ISlide slide = ppt.Slides[0];
Step 3: Set or get the alternative text of the first Shape in the slide.
//Set the alternative text (title and description) slide.Shapes[0].AlternativeTitle = "Rectangle"; slide.Shapes[0].AlternativeText = "This is a Rectangle"; //Get the alternative text (title and description) //string title = slide.Shapes[0].AlternativeTitle; //string description = slide.Shapes[0].AlternativeText;
Step 4: Save the file.
ppt.SaveToFile("Output.pptx", FileFormat.Pptx2013);
Screenshot after setting alternative text:
Full code:
using Spire.Presentation;
namespace Set_and_Get_Alternative_Text_of_Shape
{
class Program
{
static void Main(string[] args)
{
//Instantiate a Presentation object
Presentation ppt = new Presentation();
//Load the PowerPoint file
ppt.LoadFromFile("Input.pptx");
//Get the first slide
ISlide slide = ppt.Slides[0];
//Set the alternative text (title and description)
slide.Shapes[0].AlternativeTitle = "Rectangle";
slide.Shapes[0].AlternativeText = "This is a Rectangle";
//Get the alternative text (title and description)
//string title = slide.Shapes[0].AlternativeTitle;
//string description = slide.Shapes[0].AlternativeText;
//Save the file
ppt.SaveToFile("Output.pptx", FileFormat.Pptx2013);
}
}
}
