PM> Install-Package Spire.Presentation

using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;

namespace Hyperlink
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Create a Presentation instance
            Presentation presentation = new Presentation();

            //Load the PowerPoint file
            presentation.LoadFromFile("sample.pptx", FileFormat.Pptx2010);

            //Get the first slide of the presentation
            ISlide slide = presentation.Slides[0];

            //Add a shape to the slide
            RectangleF rec = new RectangleF(presentation.SlideSize.Size.Width / 2 - 120, 200, 500, 150);
            IAutoShape shape = slide.Shapes.AppendShape(ShapeType.Rectangle, rec);
            shape.Fill.FillType = FillFormatType.None;
            shape.ShapeStyle.LineColor.Color = Color.White;

            //Remove the default paragraphs in the shape
            shape.TextFrame.Paragraphs.Clear();

            //Create a TextParagraph instance
            TextParagraph para = new TextParagraph();

            //Create a TextRange instance
            TextRange tr = new TextRange("Spire.Presentation for .NET");

            //Set a hyperlink address for the text range
            tr.ClickAction.Address = "http://www.e-iceblue.com/Introduce/presentation-for-net-introduce.html";

            //Append the text range to the paragraph
            para.TextRanges.Append(tr);

            //Create a TextRange instance
            tr = new TextRange("is a professional PowerPoint® compatible API that enables developers to create, read,  modify, convert and Print PowerPoint documents on any .NET platform."
                +"As an independent PowerPoint .NET API, Spire.Presentation for .NET doesn't need Microsoft PowerPoint to be installed on machines.");

            //Append the text range to the paragraph
            para.TextRanges.Append(tr);

            //Append the paragraph to the shape
            shape.TextFrame.Paragraphs.Append(para);

            //Loop through the paragraphs in the shape
            foreach (TextParagraph textPara in shape.TextFrame.Paragraphs)
            {
                if (!string.IsNullOrEmpty(textPara.Text))
                {

                    //Loop through the text ranges in each paragraph
                    foreach (TextRange textRange in textPara.TextRanges)
                    {

                        //Set font
                        textRange.LatinFont = new TextFont("Calibri");
                        textRange.FontHeight = 24;
                        textRange.Fill.FillType = FillFormatType.Solid;
                        textRange.Fill.SolidColor.Color = Color.Black;
                    }
                }
            }

            //Save the presentation
            presentation.SaveToFile("TextHyperlink.pptx", FileFormat.Pptx2013);
            presentation.Dispose();
        }
    }
}

Imports Spire.Presentation
Imports Spire.Presentation.Drawing
Imports System.Drawing

Namespace Hyperlink
    
    Class Program
        
        Private Shared Sub Main(ByVal args() As String)
            'Create a Presentation instance
            Dim presentation As Presentation = New Presentation

            'Load the PowerPoint file
            presentation.LoadFromFile("sample.pptx", FileFormat.Pptx2010)

            'Get the first slide of the presentation
            Dim slide As ISlide = presentation.Slides(0)

            'Add a shape to the slide
            Dim rec As RectangleF = New RectangleF(((presentation.SlideSize.Size.Width / 2)  _
                            - 120), 200, 500, 150)
            Dim shape As IAutoShape = slide.Shapes.AppendShape(ShapeType.Rectangle, rec)
            shape.Fill.FillType = FillFormatType.None
            shape.ShapeStyle.LineColor.Color = Color.White

            'Remove the default paragraphs in the shape
            shape.TextFrame.Paragraphs.Clear

            'Create a TextParagraph instance
            Dim para As TextParagraph = New TextParagraph

            'Create a TextRange instance
            Dim tr As TextRange = New TextRange("Spire.Presentation for .NET")

            'Set a hyperlink address for the text range
            tr.ClickAction.Address = "http://www.e-iceblue.com/Introduce/presentation-for-net-introduce.html"

            'Append the text range to the paragraph
            para.TextRanges.Append(tr)

            'Create a TextRange instance
            tr = New TextRange("is a professional PowerPoint® compatible API that enables developers to create, read,  modify, convert and Print PowerPoint documents on any .NET platform." & _  "As an independent PowerPoint .NET API, Spire.Presentation for .NET doesn't need Microsoft PowerPoint to be installed on machines.")

            'Append the text range to the paragraph
            para.TextRanges.Append(tr)

            'Append the paragraph to the shape
            shape.TextFrame.Paragraphs.Append(para)

            'Loop through the paragraphs in the shape
            For Each textPara As TextParagraph In shape.TextFrame.Paragraphs
                If Not String.IsNullOrEmpty(textPara.Text) Then

                    'Loop through the text ranges in each paragraph
                    For Each textRange As TextRange In textPara.TextRanges

                        'Set font
                        textRange.LatinFont = New TextFont("Calibri")
                        textRange.FontHeight = 24
                        textRange.Fill.FillType = FillFormatType.Solid
                        textRange.Fill.SolidColor.Color = Color.Black
                    Next
                End If
                
            Next

            'Save the presentation
            presentation.SaveToFile("TextHyperlink.pptx", FileFormat.Pptx2013)
            presentation.Dispose()
        End Sub
    End Class
End Namespace

using Spire.Presentation;
using System.Drawing;
namespace ImageHyperlink
{
    class Program
    {
        static void Main(string[] args)
        {
            //Initialize an object of Presentation class
            Presentation presentation = new Presentation();

            //Load the PowerPoint file
            presentation.LoadFromFile("TextHyperlink.pptx", FileFormat.Pptx2010);

            //Get the second slide of the presentation
            ISlide slide = presentation.Slides[1];

            //Add a image to slide
            RectangleF rect = new RectangleF(100, 50, 150, 150);
            IEmbedImage image = slide.Shapes.AppendEmbedImage(ShapeType.Rectangle, @"logo.png", rect);

            //Add hyperlink to image
            ClickHyperlink hyperlink = new ClickHyperlink("http://www.e-iceblue.com/Introduce/presentation-for-net-introduce.html");
            image.Click = hyperlink;

            //Save the result file
            presentation.SaveToFile("ImageHyperlink.pptx", FileFormat.Pptx2010);
            presentation.Dispose();
        }
    }
} 

Imports Spire.Presentation
Imports System.Drawing

Namespace ImageHyperlink
    
    Class Program
        
        Private Shared Sub Main(ByVal args() As String)
            'Initialize an object of Presentation class
            Dim presentation As Presentation = New Presentation

            'Load the PowerPoint file
            presentation.LoadFromFile("TextHyperlink.pptx", FileFormat.Pptx2010)

            'Get the second slide of the presentation
            Dim slide As ISlide = presentation.Slides(1)

            'Add image to slide
            Dim rect As RectangleF = New RectangleF(100, 50, 150, 150)
            Dim image As IEmbedImage = slide.Shapes.AppendEmbedImage(ShapeType.Rectangle, "logo.png", rect)

            'Add hyperlink to image
            Dim hyperlink As ClickHyperlink = New ClickHyperlink("http://www.e-iceblue.com/Introduce/presentation-for-net-introduce.html")
            image.Click = hyperlink

            'Save the result file
            presentation.SaveToFile("ImageHyperlink.pptx", FileFormat.Pptx2010)
            presentation.Dispose()
        End Sub
    End Class
End Namespace