Spire.Presentation supports to insert HTML formatted text to PowerPoint slide. The following code snippets demonstrate how to.
Step 1: Create an instance of Presentation class.
Presentation ppt = new Presentation();
Step 2: Insert an autoshape (rectangle) in slide.
IAutoShape shape = ppt.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 50, 400, 100));
Step 3: Clear default paragraphs in the shape.
shape.TextFrame.Paragraphs.Clear();
Step 4: Add paragraphs to shape from HTML code. Make sure your HTML segments are written between <html><body> and </body></html> tags, otherwise, AddFromHtml method will fail to work.
string htmlText= "<html><body><p>First paragraph</p><p>Second paragraph</p></body></html>"; shape.TextFrame.Paragraphs.AddFromHtml(htmlText);
Step 5: Save to file.
ppt.SaveToFile("output.pptx", FileFormat.Pptx2013);
Output:
Full Code:
[C#]
using Spire.Presentation;
using System.Drawing;
namespace AppendHTMLString
{
class Program
{
static void Main(string[] args)
{
Presentation ppt = new Presentation();
IAutoShape shape = ppt.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 50, 400, 100));
shape.TextFrame.Paragraphs.Clear();
string htmlText = "First paragraph
Second paragraph
";
shape.TextFrame.Paragraphs.AddFromHtml(htmlText);
ppt.SaveToFile("output.pptx", FileFormat.Pptx2013);
}
}
}
[VB.NET]
Imports Spire.Presentation Imports System.Drawing Namespace AppendHTMLString Class Program Private Shared Sub Main(args As String()) Dim ppt As New Presentation() Dim shape As IAutoShape = ppt.Slides(0).Shapes.AppendShape(ShapeType.Rectangle, New RectangleF(50, 50, 400, 100)) shape.TextFrame.Paragraphs.Clear() Dim htmlText As String = "First paragraph
Second paragraph
" shape.TextFrame.Paragraphs.AddFromHtml(htmlText) ppt.SaveToFile("output.pptx", FileFormat.Pptx2013) End Sub End Class End Namespace
