How to insert different document as OLE object in the Word document.

Syncfusion Essential DocIO is a .NET Word library used to create, read, and edit Word documents programmatically without Microsoft Word or Interop dependencies. Using this library, you can embed different types of document as OLE object in the Word document.

Steps to embed the multiple documents as OLE Object in Word document programmatically:

1. Create a new C# console application project.
   
   
   
   
2. Install the Syncfusion.DocIO.Winforms NuGet package as a reference to your .NET Framework applications from NuGet.org.
   
   
   
   
3. Include the following namespace in the Program.cs file.

C#

using Syncfusion.DocIO;
using Syncfusion.DocIO.DLS;
using System.Drawing;

VB.NET

Imports Syncfusion.DocIO
Imports Syncfusion.DocIO.DLS
Imports System.Drawing

4. Use the following code example to embed the multiple documents as OLE Object in the Word document.

   //Creates a new Word document.
   WordDocument document = new WordDocument();
   //Adds new section to the document.
   IWSection section = document.AddSection();
   //Adds new paragraph to the section.
   IWParagraph paragraph = section.AddParagraph();
   //Opens the file to be embedded.
   FileStream stream = new FileStream(@"Template.pdf", FileMode.Open);
   //Loads the picture instance with the image need to be displayed.
   WPicture picture = new WPicture(document);
   picture.LoadImage(Image.FromFile(@"pdf.png"));
   //Appends PDF file as the OLE object to the paragraph.
   WOleObject oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.AdobeAcrobatDocument);
   stream.Dispose();
   oleObject.OlePicture.Height = 100;
   oleObject.OlePicture.Width = 100;
    
   //Adds new paragraph to the section.
   paragraph = section.AddParagraph();
   //Opens the file to be embedded 
   stream = new FileStream(@"Template.xlsx", FileMode.Open);
   //Loads the picture instance with the image need to be displayed.
   picture = new WPicture(document);
   picture.LoadImage(Image.FromFile(@"excel.png"));
   //Appends Excel file as the OLE object to the paragraph.
   oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.ExcelWorksheet);
   stream.Dispose();
   oleObject.OlePicture.Height = 100;
   oleObject.OlePicture.Width = 100;
    
   //Adds new paragraph to the section.
   paragraph = section.AddParagraph();
   //Opens the file to be embedded 
   stream = new FileStream(@"Adventure.docx", FileMode.Open);
   //Loads the picture instance with the image need to be displayed.
   picture = new WPicture(document);
   picture.LoadImage(Image.FromFile(@"word.png"));
   //Appends Excel file as the OLE object to the paragraph. 
   oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.WordDocument);
   stream.Dispose();
   oleObject.OlePicture.Height = 100;
   oleObject.OlePicture.Width = 100;
    
   //Adds new paragraph to the section. 
   paragraph = section.AddParagraph();
   //Opens the file to be embedded. 
   stream = new FileStream(@"Sample.pptx", FileMode.Open);
   //Loads the picture instance with the image need to be displayed. 
   picture = new WPicture(document);
   picture.LoadImage(Image.FromFile(@"powerpoint.png"));
   //Appends Excel file as the OLE object to the paragraph. 
   oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.PowerPointPresentation);
   stream.Dispose();
   oleObject.OlePicture.Height = 100;
   oleObject.OlePicture.Width = 100;
    
   //Saves the Word document. 
   document.Save("Sample.docx", FormatType.Docx);
   //Closes the document 
   document.Close();
   

VB.NET

'Creates a new Word document. 
Dim document As WordDocument = New WordDocument()
'Adds new section to the document. 
Dim section As IWSection = document.AddSection()
'Adds new paragraph to the section. 
Dim paragraph As IWParagraph = section.AddParagraph()
'Opens the file to be embedded. 
Dim stream As FileStream = New FileStream("../../Data/Template.pdf", FileMode.Open)
'Loads the picture instance with the image need to be displayed. 
Dim picture As WPicture = New WPicture(document)
picture.LoadImage(Image.FromFile("../../Data/pdf.png"))
'Appends PDF file as the OLE object to the paragraph. 
Dim oleObject As WOleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.AdobeAcrobatDocument)
stream.Dispose()
oleObject.OlePicture.Height = 100
oleObject.OlePicture.Width = 100
 
'Adds new paragraph to the section. 
paragraph = section.AddParagraph()
'Opens the file to be embedded. 
stream = New FileStream("../../Data/Template.xlsx", FileMode.Open)
'Loads the picture instance with the image need to be displayed. 
picture = New WPicture(document)
picture.LoadImage(Image.FromFile("../../Data/excel.png"))
'Appends Excel file as the OLE object to the paragraph. 
oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.ExcelWorksheet)
stream.Dispose()
oleObject.OlePicture.Height = 100
oleObject.OlePicture.Width = 100
 
'Adds new paragraph to the section. 
paragraph = section.AddParagraph()
'Opens the file to be embedded. 
stream = New FileStream("../../Data/Adventure.docx", FileMode.Open)
'Loads the picture instance with the image need to be displayed. 
picture = New WPicture(document)
picture.LoadImage(Image.FromFile("../../Data/word.png"))
'Appends Excel file as the OLE object to the paragraph. 
oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.WordDocument)
stream.Dispose()
oleObject.OlePicture.Height = 100
oleObject.OlePicture.Width = 100
 
'Adds new paragraph to the section. 
paragraph = section.AddParagraph()
'Opens the file to be embedded. 
stream = New FileStream("../../Data/Sample.pptx", FileMode.Open)
'Loads the picture instance with the image need to be displayed. 
picture = New WPicture(document)
picture.LoadImage(Image.FromFile("../../Data/powerpoint.png"))
'Appends Excel file as the OLE object to the paragraph. 
oleObject = paragraph.AppendOleObject(stream, picture, OleObjectType.PowerPointPresentation)
stream.Dispose()
oleObject.OlePicture.Height = 100
oleObject.OlePicture.Width = 100
 
'Saves the Word document. 
document.Save("Sample.docx", FormatType.Docx)
'Closes the document. 
document.Close()

A complete working sample to find the list of fonts used in the Word document using C# can be downloaded from here

By executing the program, you will get the output Word document as follows.

Take a moment to peruse the document where you can find basic Word document processing options along with the features like mail merge, merge and split documents, find and replace text in the Word document, protect the Word documents, and most importantly, the PDF and Image conversions with code examples.

Explore more about the rich set of Syncfusion Word Framework features.