Extract images from word document using OpenXML

Purpose : To extract images from word document (.docx) without word installed on system

Requirements : Download Document.OpenXML from Nuget Packages. Find the below screen shot for reference.


Step 1 : Create one console application or class library

Step 2 : Write the below code in class file
Namespaces

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using System.IO;


Main method
static void Main(string[] args)
{
ExtractImages(@"E:\Nirav\Testing\abcd.docx", @"E:\Nirav\Testing\Output", "jpg");
}

Function to extract images
public static int ExtractImages(string InputFilePath, string OutputPath, string OutputImageFileExtension)
{
int SavedImageCount = 0;
try
{
if (OutputImageFileExtension.Length <= 1)
{
throw new Exception("Output image file extension cannot be blank.");
}
else
{
if (!OutputImageFileExtension.StartsWith("."))
OutputImageFileExtension = "." + OutputImageFileExtension;

if (!File.Exists(InputFilePath))
throw new Exception("Input file doesn't exists on the system.");
else if (!Directory.Exists(OutputPath))
throw new Exception("Output folder doesn't exists on the system.");
else
{
WordprocessingDocument doc = WordprocessingDocument.Open(InputFilePath, false);
Body body = doc.MainDocumentPart.Document.Body;
IEnumerable drawings = doc.MainDocumentPart.Document.Descendants().ToList();

foreach (Drawing draw in drawings)
{
foreach (DocumentFormat.OpenXml.Drawing.Blip b in draw.Descendants().ToList())
{
ImagePart imgPart = (ImagePart)doc.MainDocumentPart.GetPartById(b.Embed);
using (System.Drawing.Image saveImage = System.Drawing.Bitmap.FromStream(imgPart.GetStream()))
{
int Cnt = 1;
while (File.Exists(OutputPath + "\\" + "img_" + Cnt.ToString("D3") + OutputImageFileExtension))
Cnt++;

string ImgFileName = "img_" + Cnt.ToString("D3") + OutputImageFileExtension;
saveImage.Save(OutputPath + "\\" + ImgFileName, System.Drawing.Imaging.ImageFormat.Png);
SavedImageCount++;
}
}
}
}
}
}
catch (Exception ex)
{
Console.WriteLine("An error occurred while extracting images from word file: " + ex.Message);
}
return SavedImageCount;
}