How to place picture after some text in word document using interop (C#)?

[The Techie here]

On button click event picture is placed at the beginning of the document then text is written. I want to write all the text at the beginning of the document then picture/image right below the text. Iam using word Interop.dll. Please guide me to achieve it, thank you.

using Word = Microsoft.Office.Interop.Word;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
object oMissing = System.Reflection.Missing.Value;
object oEndOfDoc = "\\endofdoc"; /* \endofdoc is a predefined bookmark */
//Start Word and create a new document.
Word._Application oWord;
Word._Document oDoc = new Word.Document();
oWord = new Word.Application();
oWord.Visible = false;
oDoc = oWord.Documents.Add(ref oMissing, ref oMissing,
ref oMissing, ref oMissing);
//Insert a paragraph at the beginning of the document.
Word.Paragraph oPara1;
oPara1 = oDoc.Content.Paragraphs.Add(ref oMissing);
oPara1.Range.Text = "Heading 1";
oPara1.Range.Font.Bold = 1;
oPara1.Format.SpaceAfter = 24; //24 pt spacing after paragraph.
oPara1.Range.InsertParagraphAfter();
//Insert a paragraph at the end of the document.
Word.Paragraph oPara2;
object oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oPara2 = oDoc.Content.Paragraphs.Add(ref oRng);
oPara2.Range.Text = "Heading 2";
oPara2.Format.SpaceAfter = 6;
oPara2.Range.InsertParagraphAfter();

//Insert Picture
Word.Range range = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
range.Application.ActiveDocument.InlineShapes.AddPicture(@"D:\Image.jpg");

//Insert another paragraph.
Word.Paragraph oPara3;
oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oPara3 = oDoc.Content.Paragraphs.Add(ref oRng);
oPara3.Range.Text = "This is a sentence of normal text. Now here is a table:";
oPara3.Range.Font.Bold = 0;
oPara3.Format.SpaceAfter = 24;
oPara3.Range.InsertParagraphAfter();

//Insert Table
Word.Table oTable;
Word.Range wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oTable = oDoc.Tables.Add(wrdRng, 3, 5, ref oMissing, ref oMissing);
oTable.Range.ParagraphFormat.SpaceAfter = 6;
int r, c;
string strText;
for (r = 1; r <= 3; r++)
for (c = 1; c <= 5; c++)
{
strText = "r" + r + "c" + c;
oTable.Cell(r, c).Range.Text = strText;
}
oTable.Rows[1].Range.Font.Bold = 1;
oTable.Rows[1].Range.Font.Italic = 1;

string file_name = @"E:\Example.docx";
oDoc.SaveAs2(file_name);
oDoc.Close();
oWord.Quit();
}
}
}

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