Displaying items by tag: ppt net Paragraph Text

Thursday, 27 July 2017 09:30

Append HTML String to PowerPoint in C#, VB.NET

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:

Append HTML String to PowerPoint in C#, VB.NET

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

Published in Paragraph and Text

Friday, 02 June 2017 07:30

Copy a paragraph from one presentation slide to another in C#

In our daily work, we may need to copy the contents from one presentation slides to another. This article is aimed to introduce the method of how to copy the content from one paragraph from the source PowerPoint document to the target document by using Spire.Presenation.

Firstly, View the original presentation slide and the target presentation slide.

Copy a paragraph from one presentation slide to another in C#

Step 1: Initialize an instances of Presentation class and load the source document from file

Presentation ppt = new Presentation();
ppt.LoadFromFile("Sample.pptx", FileFormat.Pptx2010);

Step 2: Get the text from the first shape on the first slide.

string Text = "";           
IShape shp = ppt.Slides[0].Shapes[0];
Text = ((IAutoShape)shp).TextFrame.Text;

Step 3: Get the first shape on the first slide from the target document file.

Presentation ppt2 = new Presentation("Sample1.pptx", FileFormat.Pptx2010);
IShape destshp = ppt2.Slides[0].Shapes[0];

Step 4: Get text from placeholder.

((IAutoShape)destshp).TextFrame.Text += Text;

Step 5: Save the document to file.

ppt2.SaveToFile("Sample1.pptx", FileFormat.Pptx2010);

Effective screenshot after copy the paragraph from the source file:

Copy a paragraph from one presentation slide to another in C#

Full codes:

using Spire.Presentation;
namespace CoppyParagh
{
    class Program
    {
        static void Main(string[] args)
        {

            Presentation ppt = new Presentation();
            ppt.LoadFromFile("Sample.pptx", FileFormat.Pptx2010);

            string Text = "";
            IShape shp = ppt.Slides[0].Shapes[0];
            Text = ((IAutoShape)shp).TextFrame.Text;

            Presentation ppt2 = new Presentation("Sample1.pptx", FileFormat.Pptx2010);
            IShape destshp = ppt2.Slides[0].Shapes[0];
            ((IAutoShape)destshp).TextFrame.Text += Text;

            ppt2.SaveToFile("Sample1.pptx", FileFormat.Pptx2010);


        }
    }
}

Published in Paragraph and Text

Friday, 19 May 2017 07:47

Text replacement on the presentation slides

By using Spire.Presentation for .NET, developers can easily modify the texts on the presentation slides. In this topic, we are going to demonstrate how to use Spire.Presentation to replace the specific texts in a placeholder in C#.

Firstly, view the original sample document that the text "Spire.Presentation for .NET" will be replaced later.

Text replacement on the presentation slides

Step 1: Create an instance of Dictionary<string,string> and add an item for the instance.

Dictionary<string, string> TagValues = new Dictionary<string, string>();
TagValues.Add("Spire.Presentation for .NET", "Spire.PPT");

Step 2: Create a presentation instance and load the document from file.

Presentation presentation = new Presentation();
presentation.LoadFromFile("Sample.pptx", FileFormat.Pptx2010);

Step 3: Call ReplaceTags event to replace all the texts on the first slide.

ReplaceTags(presentation.Slides[0], TagValues);

Step 4: Save the document to file and lance to process it.

presentation.SaveToFile("Result.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("Result.pptx");

The following ReplaceTags() method shows how to replace the text on the first presentation slide:

public void ReplaceTags(Spire.Presentation.ISlide pSlide, Dictionary<string, string> TagValues)
{
    foreach (IShape curShape in pSlide.Shapes)
    {
        if (curShape is IAutoShape)
        {
            foreach (TextParagraph tp in (curShape as IAutoShape).TextFrame.Paragraphs)
            {
                foreach (var curKey in TagValues.Keys)
                {
                    if (tp.Text.Contains(curKey))
                    {
                        tp.Text = tp.Text.Replace(curKey, TagValues[curKey]);
                    }
                }
            }
        }
    }
}

Effective screenshot after the replacing the text on the presentation slide:

Text replacement on the presentation slides

Full codes of how to replace the text on the presentation slides:

public ReplaceText()
{
    {
        Dictionary<string, string> TagValues = new Dictionary<string, string>();
        TagValues.Add("Spire.Presentation for .NET", "Spire.PPT");

        Presentation presentation = new Presentation();

        presentation.LoadFromFile("Sample.pptx", FileFormat.Pptx2010);

        ReplaceTags(presentation.Slides[0], TagValues);

        presentation.SaveToFile("Result.pptx", FileFormat.Pptx2010);
        System.Diagnostics.Process.Start("Result.pptx");
    }
}
public void ReplaceTags(Spire.Presentation.ISlide pSlide, Dictionary<string, string> TagValues)
{
    foreach (IShape curShape in pSlide.Shapes)
    {
        if (curShape is IAutoShape)
        {
            foreach (TextParagraph tp in (curShape as IAutoShape).TextFrame.Paragraphs)
            {
                foreach (var curKey in TagValues.Keys)
                {
                    if (tp.Text.Contains(curKey))
                    {
                        tp.Text = tp.Text.Replace(curKey, TagValues[curKey]);
                    }
                }
            }
        }
    }
}

Published in Paragraph and Text

Monday, 16 January 2017 08:22

Set Shadow Effects for the Text on the Presentation Slides

Spire.Presentation for .NET offers classes of InnerShadowEffect and OuterShadowEffect to enable developers to set the shadow effects for the Text on the presentation slides. This article will focus on how to apply the Font outer shadow effects for the Text in C#.

Firstly, view the effective screenshot for the Text after apply the outer shadow effects via Spire.Presentation.

Set Shadow Effects for the Text on the Presentation Slides

Step 1: Create an instance of Presentation class.

Presentation presentation = new Presentation();

Step 2: Get reference of the slide.

ISlide slide = presentation.Slides[0];

Step 3: Add a new rectangle shape to the first slide.

IAutoShape shape = slide.Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(120, 70, 450, 300));
shape.Fill.FillType = Spire.Presentation.Drawing.FillFormatType.None;

Step 4: Add the text to the shape and set the font for the text.

shape.AppendTextFrame("Text shading on slides");
shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Black");
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;

Step 5: Add outer shadow and set all necessary parameters.

Spire.Presentation.Drawing.OuterShadowEffect Shadow = new Spire.Presentation.Drawing.OuterShadowEffect();

Shadow.BlurRadius = 0;
Shadow.Direction = 50;
Shadow.Distance = 10;
Shadow.ColorFormat.Color = Color.Green;

Step 6: Apply the shadow effects to the shape.

shape.TextFrame.TextRange.EffectDag.OuterShadowEffect = Shadow;

Step 7: Save the document.

presentation.SaveToFile("Result.pptx", FileFormat.Pptx2010);

We can also use the code as below to set the inner shadow for the text font. It is almost the same as how to set the outer shadow effects.

Spire.Presentation.Drawing.InnerShadowEffect Shadow = new Spire.Presentation.Drawing.InnerShadowEffect();

Full codes of how to apply the shadow effects for the text font:

using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
namespace SetShadowEffect
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation presentation = new Presentation();
            ISlide slide = presentation.Slides[0];

            IAutoShape shape = slide.Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(120, 70, 450, 300));
            shape.Fill.FillType = Spire.Presentation.Drawing.FillFormatType.None;

            shape.AppendTextFrame("Text shading on slides");
            shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Black");
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;

            //Spire.Presentation.Drawing.InnerShadowEffect Shadow = new Spire.Presentation.Drawing.InnerShadowEffect();

            //Add Outer shadow and set all necessary parameters
            Spire.Presentation.Drawing.OuterShadowEffect Shadow = new Spire.Presentation.Drawing.OuterShadowEffect();

            Shadow.BlurRadius = 0;
            Shadow.Direction = 50;
            Shadow.Distance = 10;
            Shadow.ColorFormat.Color = Color.Green;

            shape.TextFrame.TextRange.EffectDag.OuterShadowEffect = Shadow;

            presentation.SaveToFile("Result.pptx", FileFormat.Pptx2010);

        }
    }
}

Published in Paragraph and Text

Friday, 10 July 2015 08:33

How to set margins for text inside shapes in C#

Margin is the space between the text and the edge of paper or shape. MS office sets default margins for users but usually we need to reset the margins to best fit our formatting needs. In Presentation, text is often inside a shape or textbox, and there is an option to set the margins for text inside shapes. It’s worthy of mentioning that Spire.Presentation provides the APIs to help users set margins for text inside shapes. This article is going to introduce the method to set the internal margins of shapes in C# using Spire.Presentation.

Note: before start, please download the latest version of Spire.Presentation and use the .dll in the bin folder as the reference of Visual Studio.

Step 1: Initial a new Presentation and insert a sample shape.

Presentation presentation = new Presentation();
IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 450, 150));

Step 2: Add sample text into the shape and format the text.

            shape.Fill.FillType = FillFormatType.None;
            shape.ShapeStyle.LineColor.Color = Color.DarkGreen;
            shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Justify;
            shape.TextFrame.Text = "Using Spire.Presentation, developers will find an easy and effective method to create, read, write, modify, convert and print PowerPoint files on any .Net platform. It's worthwhile for you to try this amazing product.";
            shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Rounded MT Bold");
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;

Step 3: Set the margins for the text frame.

            shape.TextFrame.MarginTop = 10;
            shape.TextFrame.MarginBottom = 35;
            shape.TextFrame.MarginLeft = 15;
            shape.TextFrame.MarginRight = 30;

Step 4: Save the document and launch to see effects.

            presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("result.pptx");

Effects:

How to set margins for text inside shapes in C#

Full Codes:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;

namespace test
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation presentation = new Presentation();
            IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 450, 150));
       
            shape.Fill.FillType = FillFormatType.None;
            shape.ShapeStyle.LineColor.Color = Color.DarkGreen;
            shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Justify;
            shape.TextFrame.Text = "Using Spire.Presentation, developers will find an easy and effective method to create, read, write, modify, convert and print PowerPoint files on any .Net platform. It's worthwhile for you to try this amazing product.";
            shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Rounded MT Bold");
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;
   
            shape.TextFrame.MarginTop = 10;
            shape.TextFrame.MarginBottom = 35;
            shape.TextFrame.MarginLeft = 15;
            shape.TextFrame.MarginRight = 30;

            presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("result.pptx");

        }
    }
}

Published in Paragraph and Text

Tuesday, 12 May 2015 05:10

How to Mix Font Styles within a Single TextRange in C#, VB.NET

To emphasize some words or phrases in a sentence, most probably you will set different formats such as font type, color, and size to these parts. When we programmatically insert a sentence with various kinds of font styles into a PowerPoint slide, it is an easy task if we format the text at the first place and then append the text to a paragraph. In this article, we attach more importance to introduce how to mix font styles within a single TextRange on an existing PowerPoint slide.

Test File:

As is shown in test file, all words in this TextRange are in the same font style. Now we would like to make some changes.

How to Mix Font Styles within a Single TextRange in C#, VB.NET

Code Snippet:

Step 1: Create a new PowerPoint document and load the test file.

Presentation ppt = new Presentation("Sample.pptx", FileFormat.Pptx2010);

Step 2: Get the shape from PowerPoint slide, get the text from shape and save to a new string variable.

IAutoShape shape = ppt.Slides[0].Shapes[0] as IAutoShape;
string originalText = shape.TextFrame.Text;

Step 3: Split the string by specified words and return substrings to a string array.

string[] splitArray = originalText.Split(new string[] { "bold", "red","underlined","bigger font size" }, StringSplitOptions.None);

Step 4: Remove the paragraph from TextRange.

TextParagraph tp = shape.TextFrame.TextRange.Paragraph;
tp.TextRanges.Clear();

Step 5: Append normal text that is in front of ‘bold’ to the paragraph.

TextRange tr = new TextRange(splitArray[0]);
tp.TextRanges.Append(tr);

Step 6: Set font style of the text ‘bold’ as bold, and append it to the paragraph.

tr = new TextRange("bold");
tr.IsBold = TriState.True;
tp.TextRanges.Append(tr);

Step 7: Repeat step 5 and step 6 to append the rest normal texts and formatted texts to the paragraph.

//normal text
tr = new TextRange(splitArray[1]);
tp.TextRanges.Append(tr);
//red text
tr = new TextRange("red");
tr.Fill.FillType = Spire.Presentation.Drawing.FillFormatType.Solid;
tr.Format.Fill.SolidColor.Color = Color.Red;
tp.TextRanges.Append(tr);
//normal text
tr = new TextRange(splitArray[2]);
tp.TextRanges.Append(tr);
//underline text
tr = new TextRange("underlined");
tr.TextUnderlineType = TextUnderlineType.Single;
tp.TextRanges.Append(tr);
//normal text
tr = new TextRange(splitArray[3]);
tp.TextRanges.Append(tr);
//bigger size text
tr = new TextRange("bigger font size");
tr.FontHeight = 35;
tp.TextRanges.Append(tr);
//normal text
tr = new TextRange(splitArray[4]);
tp.TextRanges.Append(tr);

Step 8: Save the file.

ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);

Output:

How to Mix Font Styles within a Single TextRange in C#, VB.NET

Full Code:

[C#]

using Spire.Presentation;
using System;
using System.Drawing;
namespace MixFontStyle
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation ppt = new Presentation("Sample.pptx", FileFormat.Pptx2010);
            IAutoShape shape = ppt.Slides[0].Shapes[0] as IAutoShape;
            string originalText = shape.TextFrame.Text;
            string[] splitArray = originalText.Split(new string[] { "bold", "red", "underlined", "bigger font size" }, StringSplitOptions.None);
            TextParagraph tp = shape.TextFrame.TextRange.Paragraph;
            tp.TextRanges.Clear();
            //normal text
            TextRange tr = new TextRange(splitArray[0]);
            tp.TextRanges.Append(tr);
            //bold text
            tr = new TextRange("bold");
            tr.IsBold = TriState.True;
            tp.TextRanges.Append(tr);
            //normal text
            tr = new TextRange(splitArray[1]);
            tp.TextRanges.Append(tr);
            //red text
            tr = new TextRange("red");
            tr.Fill.FillType = Spire.Presentation.Drawing.FillFormatType.Solid;
            tr.Format.Fill.SolidColor.Color = Color.Red;
            tp.TextRanges.Append(tr);
            //normal text
            tr = new TextRange(splitArray[2]);
            tp.TextRanges.Append(tr);
            //underline text
            tr = new TextRange("underlined");
            tr.TextUnderlineType = TextUnderlineType.Single;
            tp.TextRanges.Append(tr);
            //normal text
            tr = new TextRange(splitArray[3]);
            tp.TextRanges.Append(tr);
            //bigger size text
            tr = new TextRange("bigger font size");
            tr.FontHeight = 35;
            tp.TextRanges.Append(tr);
            //normal text
            tr = new TextRange(splitArray[4]);
            tp.TextRanges.Append(tr);
            ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);

        }
    }
}

[VB.NET]

Imports Spire.Presentation
Imports System.Drawing
Namespace MixFontStyle
	Class Program
		Private Shared Sub Main(args As String())
			Dim ppt As New Presentation("Sample.pptx", FileFormat.Pptx2010)
			Dim shape As IAutoShape = TryCast(ppt.Slides(0).Shapes(0), IAutoShape)
			Dim originalText As String = shape.TextFrame.Text
			Dim splitArray As String() = originalText.Split(New String() {"bold", "red", "underlined", "bigger font size"}, StringSplitOptions.None)
			Dim tp As TextParagraph = shape.TextFrame.TextRange.Paragraph
			tp.TextRanges.Clear()
			'normal text
			Dim tr As New TextRange(splitArray(0))
			tp.TextRanges.Append(tr)
			'bold text
			tr = New TextRange("bold")
			tr.IsBold = TriState.[True]
			tp.TextRanges.Append(tr)
			'normal text
			tr = New TextRange(splitArray(1))
			tp.TextRanges.Append(tr)
			'red text
			tr = New TextRange("red")
			tr.Fill.FillType = Spire.Presentation.Drawing.FillFormatType.Solid
			tr.Format.Fill.SolidColor.Color = Color.Red
			tp.TextRanges.Append(tr)
			'normal text
			tr = New TextRange(splitArray(2))
			tp.TextRanges.Append(tr)
			'underline text
			tr = New TextRange("underlined")
			tr.TextUnderlineType = TextUnderlineType.[Single]
			tp.TextRanges.Append(tr)
			'normal text
			tr = New TextRange(splitArray(3))
			tp.TextRanges.Append(tr)
			'bigger size text
			tr = New TextRange("bigger font size")
			tr.FontHeight = 35
			tp.TextRanges.Append(tr)
			'normal text
			tr = New TextRange(splitArray(4))
			tp.TextRanges.Append(tr)
			ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010)

		End Sub
	End Class
End Namespace

Published in Paragraph and Text

Monday, 16 February 2015 08:27

Remove Textbox from PowerPoint Files

As a powerful and easy to use .NET component, Spire.Presentation enable developers to generate, modify, convert, render, and print documents without installing Microsoft PowerPoint. In this article let's see how to remove textbox.

Make sure Spire.Presentation for .NET has been installed correctly and then add Spire.Presentation.dll as reference in the downloaded Bin folder through the below path, for example .NET 4.0 : "..\Spire.Presentation\Bin\NET4.0\ Spire. Presentation.dll". Here comes to the details of how to remove textbox from PPT files:

Step 1: Create a PPT document and load sample PPT file. In this sample file three textboxes are added by order with their name number.

Presentation ppt = new Presentation("Sample.pptx", FileFormat.Pptx2010);

Remove Textbox from PowerPoint Files

Step 2: Traverse all the shapes in Slide[0], then remove them as long as they were found.

ISlide slide = ppt.Slides[0];

      for (int i = 0; i < slide.Shapes.Count;)
      {
         IAutoShape shape = slide.Shapes[i] as IAutoShape;
          slide.Shapes.Remove(shape);
       }

Step 3: Save the document as "Result.pptx" and review.

ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("Result.pptx");

The result is just as we thought.

Remove Textbox from PowerPoint Files

If we need to delete textbox1, just remove the first shape. Check if this shape is textbox and its contents is “Textbox1” and then remove it, modify Step2 as:

ISlide slide = ppt.Slides[0];

 for (int i = 0; i < slide.Shapes.Count; )
     {
           IAutoShape shape = slide.Shapes[i] as IAutoShape;
           if (shape.IsTextBox ||shape.TextFrame.Text.Equals("Textbox1"))
            {
              slide.Shapes.Remove(shape);
             }
      }

Here is the result:

Remove Textbox from PowerPoint Files

Full Code:

using Spire.Presentation;
namespace RemoveText
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation ppt = new Presentation("Sample.pptx", FileFormat.Pptx2010);

            ISlide slide = ppt.Slides[0];

            for (int i = 0; i < slide.Shapes.Count; )
            {
                IAutoShape shape = slide.Shapes[0] as IAutoShape;
                slide.Shapes.Remove(shape);
            }

            ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("Result.pptx");
        }
    }
}

Remove Textbox1:

using Spire.Presentation;
namespace RemoveText
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation ppt = new Presentation("Sample.pptx", FileFormat.Pptx2010);

            ISlide slide = ppt.Slides[0];

            for (int i = 0; i < slide.Shapes.Count; )
            {
                IAutoShape shape = slide.Shapes[i] as IAutoShape;
                if (shape.IsTextBox || shape.TextFrame.Text.Equals("Textbox1"))
                {
                    slide.Shapes.Remove(shape);
                }
            }

            ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("Result.pptx");

        }
    }

Published in Paragraph and Text

Monday, 15 May 2023 03:08

C#/VB.NET: Extract Text from PowerPoint Presentations

When sending a PowerPoint document containing a lot of media files and images to others for text proofreading, you may find that the transfer speed is quite slow because of the large file size. In such a case, it is better to extract the text from PowerPoint to MS Word or Notepad first, and then send only the text content. In addition, the extracted text content can also be archived or backed up for future reference. In this article, you will learn how to extract text from a PowerPoint Presentation in C# and VB.NET using Spire.Presentation for .NET.

Install Spire.Presentation for .NET

To begin with, you need to add the DLL files included in the Spire.Presentation for.NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.

Package Manager

PM> Install-Package Spire.Presentation

Extract Text from PowerPoint Presentations in C# and VB.NET

To facilitate the sharing or delivery of text information in a PowerPoint document, text extraction is an operation occasionally required. The following are the steps to extract text from all presentation slides and save in a TXT file.

Initialize an instance of the Presentation class.
Load a sample PowerPoint document using Presentation.LoadFromFile() method.
Create a StringBuilder instance.
Iterate through each slide in the document, and then iterate through all the shapes in each slide.
Determine whether the shapes are of IAutoShape type. If yes, iterate through all the paragraphs in each shape and get the paragraph text using TextParagraph.Text property.
Append the extracted text to the StringBuilder instance using StringBuilder.AppendLine() method
Create a new txt file and write the extracted text to the file using File.WriteAllText() method.

C#
VB.NET

using Spire.Presentation;
using System.IO;
using System.Text;
namespace ExtractText
{
    class Program
    {
        static void Main(string[] args)
        {
            //Initialize an instance of the Presentation class
            Presentation presentation = new Presentation();

            //Load a sample PowerPoint document
            presentation.LoadFromFile("Island.pptx");
            //Create a StringBuilder instance
            StringBuilder sb = new StringBuilder();

            //Iterate through each slide in the document
            foreach (ISlide slide in presentation.Slides)
            {
                //Iterate through each shape in each slide
                foreach (IShape shape in slide.Shapes)
                {
                    //Check if the shape is of IAutoShape type
                    if (shape is IAutoShape)
                    {
                        //Iterate through all paragraphs in each shape
                        foreach (TextParagraph tp in (shape as IAutoShape).TextFrame.Paragraphs)
                        {
                            //Extract text and save to StringBuilder instance
                            sb.AppendLine(tp.Text);
                        }
                    }
                }
            }
            //Create a new txt file to save the extracted text
            File.WriteAllText("ExtractText.txt", sb.ToString());
        }
    }
}

C#/VB.NET: Extract Text from PowerPoint Presentations

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Published in Paragraph and Text

Tuesday, 06 May 2014 08:26

Add a Paragraph to PowerPoint file

PPT file format is a vivid and explicit way to present your stuff. PPT file can be very beautiful and powerful. And text is a basic element that PPT supports. Spire.Presentation is a powerful .NET component specially designed for developers. It enables developers to manipulate PPT files easily and flexibly. In this document, I will introduce you how to add a paragraph to PPT file using Spire.Presentation.

Step 1. Create a PPT document.

Presentation presentation = new Presentation();

Step 2. Add a new shape to the document.

IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 450, 150));
shape.Fill.FillType = FillFormatType.None;
shape.ShapeStyle.LineColor.Color = Color.White;

Shape represents a TextBox in PPT document.

Step 3. Add some text to the shape.

shape.TextFrame.Text = "This powerful component suite contains the most up-to-date versions of all .NET WPF Silverlight components offered by E-iceblue.";

These will form a new paragraph.

Step 4. Set the alignment of the paragraph.

shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Left;

Step 5. Set the indent of the paragraph.

shape.TextFrame.Paragraphs[0].Indent = 25*2;

Step 6. Set the line spacing of the paragraph.

shape.TextFrame.Paragraphs[0].LineSpacing = 250;

Step 7. Save the document.

presentation.SaveToFile("para.pptx", FileFormat.Pptx2010);

Full code:

[C#]

using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
namespace AddParagh
{
    class Program
    {
        static void Main(string[] args)
        {
            //create PPT document
            Presentation presentation = new Presentation();

            //set background Image
            string ImageFile = "bg.png";
            RectangleF rect = new RectangleF(0, 0, presentation.SlideSize.Size.Width, presentation.SlideSize.Size.Height);
            presentation.Slides[0].Shapes.AppendEmbedImage(ShapeType.Rectangle, ImageFile, rect);
            presentation.Slides[0].Shapes[0].Line.FillFormat.SolidFillColor.Color = Color.FloralWhite;

            //append new shape
            IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 450, 150));
            shape.Fill.FillType = FillFormatType.None;
            shape.ShapeStyle.LineColor.Color = Color.White;

            //set the alignment
            shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Left;
            //set the indent
            shape.TextFrame.Paragraphs[0].Indent = 50;
            //set the linespacing
            shape.TextFrame.Paragraphs[0].LineSpacing = 150;
            shape.TextFrame.Text = "This powerful component suite contains the most up-to-date versions of all .NET WPF Silverlight components offered by E-iceblue.";

            //set the Font
            shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Rounded MT Bold");
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
            shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;

            //save the document
            presentation.SaveToFile("para.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("para.pptx");
        }
    }
}

[VB.NET]

'create PPT document
Dim presentation As New Presentation()

'set background Image
Dim ImageFile As String = "bg.png"
Dim rect As New RectangleF(0, 0, presentation.SlideSize.Size.Width, presentation.SlideSize.Size.Height)
presentation.Slides(0).Shapes.AppendEmbedImage(ShapeType.Rectangle, ImageFile, rect)
presentation.Slides(0).Shapes(0).Line.FillFormat.SolidFillColor.Color = Color.FloralWhite

'append new shape
Dim shape As IAutoShape = presentation.Slides(0).Shapes.AppendShape(ShapeType.Rectangle, New RectangleF(50, 70, 450, 150))
shape.Fill.FillType = FillFormatType.None
shape.ShapeStyle.LineColor.Color = Color.White

'set the alignment
shape.TextFrame.Paragraphs(0).Alignment = TextAlignmentType.Left
'set the indent
shape.TextFrame.Paragraphs(0).Indent = 50
'set the linespacing
shape.TextFrame.Paragraphs(0).LineSpacing = 150
shape.TextFrame.Text = "This powerful component suite contains the most up-to-date versions of all .NET WPF Silverlight components offered by E-iceblue."

'set the Font
shape.TextFrame.Paragraphs(0).TextRanges(0).LatinFont = New TextFont("Arial Rounded MT Bold")
shape.TextFrame.Paragraphs(0).TextRanges(0).Fill.FillType = FillFormatType.Solid
shape.TextFrame.Paragraphs(0).TextRanges(0).Fill.SolidColor.Color = Color.Black

'save the document
presentation.SaveToFile("para.pptx", FileFormat.Pptx2010)
System.Diagnostics.Process.Start("para.pptx")

Screenshot:

Add a Paragraph to PPT file

Published in Paragraph and Text

Thursday, 17 August 2023 01:59

C#/VB.NET: Create Numbered or Bulleted Lists in PowerPoint

Lists are a powerful tool in PowerPoint presentations that enable you to organize and present information in a clear and concise manner. Whether you're showcasing key points, summarizing ideas, or highlighting important details, utilizing lists can enhance the visual appeal, readability and professionalism of your slides. In this article, we will explore how to create numbered lists and bulleted lists in PowerPoint presentations in C# and VB.NET using Spire.Presentation for .NET.

Create a Numbered List in PowerPoint
Create a Symbol Bulleted List in PowerPoint
Create an Image Bulleted List in PowerPoint

Install Spire.Presentation for .NET

To begin with, you need to add the DLL files included in the Spire.Presentation for.NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.

Package Manager

PM> Install-Package Spire.Presentation

Create a Numbered List in PowerPoint in C# and VB.NET

A numbered list in PowerPoint is a list of items where each item is preceded by a number or a sequence of numbers. It follows a sequential order, typically starting from 1 and progressing incrementally. Numbered lists are commonly used to present steps, instructions, rankings, or any information that requires a specific order.

To create a numbered list in a PowerPoint presentation using Spire.Presentation for .NET, you can follow these steps:

Create a Presentation object.
Get the first slide using Presentation.Slides[0] property.
Append a shape to the slide using ISlide.Shapes.AppendShape() method and set the shape style.
Specify the items of the list inside a String array.
Create paragraphs based on the list items, and set the bullet type of these paragraphs to Numbered using ParagraphProperties.BulletType property.
Set the numbered bullet style of these paragraphs using ParagraphProperties.BulletStyle property.
Add these paragraphs to the shape using IAutoShape.TextFrame.Paragraphs.Append() method.
Save the document to a PowerPoint file using Presentation.SaveToFile() method.

C#
VB.NET

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

namespace CreateNumberedList
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Create a Presentation object
            Presentation presentation = new Presentation();
            //Get the first slide
            ISlide slide = presentation.Slides[0];

            //Add a shape to the slide and set the shape style
            IAutoShape shape = slide.Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 50, 300, 200));
            shape.Fill.FillType = FillFormatType.None;
            shape.Line.FillType= FillFormatType.None;

            //Add text to the default paragraph
            TextParagraph paragraph = shape.TextFrame.Paragraphs[0];
            paragraph.Text = "Required Web Development Skills:";
            paragraph.Alignment = TextAlignmentType.Left;
            paragraph.TextRanges[0].Fill.FillType = FillFormatType.Solid;
            paragraph.TextRanges[0].Fill.SolidColor.Color = Color.Black;

            //Specify the list items
            string[] listItems = new string[] {
                " Command-line Unix",
                " Vim",
                " HTML",
                " CSS",
                " Python",
                " JavaScript",
                " SQL"
            };

            //Create a numbered list
            foreach (string item in listItems)
            {
                TextParagraph textParagraph = new TextParagraph();
                textParagraph.Text = item;
                textParagraph.Alignment = TextAlignmentType.Left;
                textParagraph.TextRanges[0].Fill.FillType = FillFormatType.Solid;
                textParagraph.TextRanges[0].Fill.SolidColor.Color = Color.Black;

                textParagraph.BulletType = TextBulletType.Numbered;
                textParagraph.BulletStyle = NumberedBulletStyle.BulletArabicPeriod;
                shape.TextFrame.Paragraphs.Append(textParagraph);
            }

            //Save the result document
            presentation.SaveToFile("NumberedList.pptx", FileFormat.Pptx2013);
        }
    }
}

C#/VB.NET: Create Numbered or Bulleted Lists in PowerPoint

Create a Symbol Bulleted List in PowerPoint in C# and VB.NET

A symbol bulleted list in PowerPoint uses symbols instead of numbers to visually represent each item. Symbol bulleted lists are useful for presenting non-sequential information or a collection of points without a specific order.

To create a symbol bulleted list in a PowerPoint presentation using Spire.Presentation for .NET, you can follow these steps:

Create a Presentation object.
Get the first slide using Presentation.Slides[0] property.
Append a shape to the slide using ISlide.Shapes.AppendShape() method and set the shape style.
Specify the items of the list inside a String array.
Create paragraphs based on the list items, and set the bullet type of these paragraphs to Symbol using ParagraphProperties.BulletType property.
Add these paragraphs to the shape using IAutoShape.TextFrame.Paragraphs.Append() method.
Save the document to a PowerPoint file using Presentation.SaveToFile() method.

C#
VB.NET

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

namespace CreateSymbolBulletedList
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Create a Presentation object
            Presentation presentation = new Presentation();
            //Get the first slide
            ISlide slide = presentation.Slides[0];

            //Add a shape to the slide and set the shape style
            IAutoShape shape = slide.Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 50, 350, 200));
            shape.Fill.FillType = FillFormatType.None;
            shape.Line.FillType = FillFormatType.None;

            //Add text to the default paragraph
            TextParagraph paragraph = shape.TextFrame.Paragraphs[0];
            paragraph.Text = "Computer Science Subjects:";
            paragraph.Alignment = TextAlignmentType.Left;
            paragraph.TextRanges[0].Fill.FillType = FillFormatType.Solid;
            paragraph.TextRanges[0].Fill.SolidColor.Color = Color.Black;

            //Specify the list items
            string[] listItems = new string[] {
                " Data Structure",
                " Algorithm",
                " Computer Networks",
                " Operating System",
                " Theory of Computations",
                " C Programming",
                " Computer Organization and Architecture"
            };

            //Create a symbol bulleted list
            foreach (string item in listItems)
            {
                TextParagraph textParagraph = new TextParagraph();
                textParagraph.Text = item;
                textParagraph.Alignment = TextAlignmentType.Left;
                textParagraph.TextRanges[0].Fill.FillType = FillFormatType.Solid;
                textParagraph.TextRanges[0].Fill.SolidColor.Color = Color.Black;
                textParagraph.BulletType = TextBulletType.Symbol;
                shape.TextFrame.Paragraphs.Append(textParagraph);
            }

            //Save the result document
            presentation.SaveToFile("SymbolBulletedList.pptx", FileFormat.Pptx2013);
        }
    }
}

C#/VB.NET: Create Numbered or Bulleted Lists in PowerPoint

Create an Image Bulleted List in PowerPoint in C# and VB.NET

An image bulleted list in PowerPoint replaces the traditional bullet points with small images or icons. Instead of using numbers or symbols, each item is represented by an image that adds a visual element to the list. Image bulleted lists are commonly used when you want to incorporate visual cues or represent items with relevant icons or graphics.

To create an image bulleted list in a PowerPoint presentation using Spire.Presentation for .NET, you can follow these steps:

Create a Presentation object.
Get the first slide using Presentation.Slides[0] property.
Append a shape to the slide using ISlide.Shapes.AppendShape() method and set the shape style.
Specify the items of the list inside a String array.
Create paragraphs based on the list items, and set the bullet type of these paragraphs to Picture using ParagraphProperties.BulletType property.
Set the image that will be used as bullets using ParagraphProperties.BulletPicture.EmbedImage property.
Add these paragraphs to the shape using IAutoShape.TextFrame.Paragraphs.Append() method.
Save the document to a PowerPoint file using Presentation.SaveToFile() method.

C#
VB.NET

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

namespace CreateImageBulletedList
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Create a Presentation object
            Presentation presentation = new Presentation();
            //Get the first slide
            ISlide slide = presentation.Slides[0];

            //Add a shape to the slide and set the shape style
            IAutoShape shape = slide.Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 50, 400, 180));
            shape.Fill.FillType = FillFormatType.None;
            shape.Line.FillType = FillFormatType.None;

            //Add text to the default paragraph
            TextParagraph paragraph = shape.TextFrame.Paragraphs[0];
            paragraph.Text = "Project Task To-Do List:";
            paragraph.Alignment = TextAlignmentType.Left;
            paragraph.TextRanges[0].Fill.FillType = FillFormatType.Solid;
            paragraph.TextRanges[0].Fill.SolidColor.Color = Color.Black;

            //Specify the list items
            string[] listItems = new string[] {
                " Define projects and tasks you're working on",
                " Assign people to tasks",
                " Define the priority levels of your tasks",
                " Keep track of the progress status of your tasks",
                " Mark tasks as done when completed"
            };

            //Create an image bulleted list
            foreach (string item in listItems)
            {
                TextParagraph textParagraph = new TextParagraph();
                textParagraph.Text = item;
                textParagraph.Alignment = TextAlignmentType.Left;
                textParagraph.TextRanges[0].Fill.FillType = FillFormatType.Solid;
                textParagraph.TextRanges[0].Fill.SolidColor.Color = Color.Black;
                textParagraph.BulletType = TextBulletType.Picture;
                IImageData image = presentation.Images.Append(Image.FromFile("icon.png"));
                textParagraph.BulletPicture.EmbedImage = image;
                shape.TextFrame.Paragraphs.Append(textParagraph);
            }

            //Save the result document
            presentation.SaveToFile("ImageBulletedList.pptx", FileFormat.Pptx2013);
        }
    }
}

C#/VB.NET: Create Numbered or Bulleted Lists in PowerPoint

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

Published in Paragraph and Text