Convert Word file pages to jpg images using C#

Question

How can I convert word document pages to particular images?

I have used following code to convert it to .tiff image

object varMissing = Type.Missing;

object varFalseValue = false;
object varTrueValue = true;

Microsoft.Office.Interop.Word.Application word = new Microsoft.Office.Interop.Word.Application();
word.ActivePrinter = "Microsoft XPS Document Writer";
object fileName = startupPath + "\\" + filename1;
object falseValue = false;
object trueValue = true;
object missing = Type.Missing;
word.Visible = true;
word.Activate();
Document doc = word.Documents.Open(ref fileName, ref missing,
                    ref falseValue, ref missing, ref missing, ref missing,
                    ref missing, ref missing, ref missing, ref missing,
                    ref missing, ref missing, ref missing, ref missing,
                    ref missing, ref missing);
doc.Activate();

object PrintToFile = true;
object OutputFileName = startupPath + "\\" + filename1.Split('.')[0] + ".tif";

doc.PrintOut(ref varMissing, ref varFalseValue, ref varMissing, 
             ref OutputFileName, ref varMissing, ref varMissing, ref varMissing,
             ref varMissing, ref varMissing, ref varMissing, ref PrintToFile, 
             ref varMissing, ref varMissing, ref varMissing, ref varMissing, 
             ref varMissing, ref varMissing, ref varMissing);

doc.Close(ref varMissing, ref varMissing, ref varMissing);
word.Quit(ref varMissing, ref varMissing, ref varMissing);

//Multi to Single
MemoryStream ms;
Image myImage;

FileStream fs = new FileStream(startupPath + "\\" + filename1.Split('.')[0] + ".tif", FileMode.Open);
fs.Seek(0, SeekOrigin.Begin);

//Here I am getting error....
myImage = Image.FromStream(fs, true, false);

Guid myGuid = myImage.FrameDimensionsList[0];
FrameDimension myDimension = new FrameDimension(myGuid);
int myPageCount = myImage.GetFrameCount(myDimension);

for (int i = 0; i < myPageCount; i++)
{
      ms = new MemoryStream();
      myImage.SelectActiveFrame(myDimension, i);
      myImage.Save(string.Format(startupPath + "\\" + filename1.Split('.')[0] + ".tif", i), ImageFormat.Tiff);
}

fs.Close();

But when I am trying to convert file stream to Image it gives me error like

Parameter is not valid.

Is there any other way to convert word file to image file?? I cannot use the dlls which are available in market for sell but I need to use the Microsoft's core interop dll. So please can anyone suggest me the link or way to convert .doc file to .jpg.

Answer 1

I think I've found the error on the code provided by @WarLock. I changed some parts of it and did it with only one file:

Microsoft.Office.Interop.Word.Application myWordApp = new Microsoft.Office.Interop.Word.Application();
Document myWordDoc = new Document();
object missing = System.Type.Missing;
object path1= path + filename + ".doc";
myWordDoc = myWordApp.Documents.Add(path1, missing, missing, missing);

foreach (Microsoft.Office.Interop.Word.Window window in myWordDoc.Windows)
{
    foreach (Microsoft.Office.Interop.Word.Pane pane in window.Panes)
    {
        for (var i = 1; i <= pane.Pages.Count; i++)
        {
            var bits = pane.Pages[i].EnhMetaFileBits;
            var target =path1 + "_image.doc";
            try
            {
                using (var ms = new MemoryStream((byte[])(bits)))
                {
                    var image = System.Drawing.Image.FromStream(ms);
                    var pngTarget = Path.ChangeExtension(target, "png");
                    image.Save(pngTarget, System.Drawing.Imaging.ImageFormat.Png);
                }
            }
            catch (System.Exception ex)
            { }
        }
    }
}
myWordDoc.Close(Type.Missing, Type.Missing, Type.Missing);
myWordApp.Quit(Type.Missing, Type.Missing, Type.Missing);

Answer 2

You can convert Doc file to image using bellow code it worked for me.

var docPath = Path.Combine(startupPath, filename1);
var app = new Microsoft.Office.Interop.Word.Application();

MessageFilter.Register();

app.Visible = true;

var doc = app.Documents.Open(docPath);

doc.ShowGrammaticalErrors = false;
doc.ShowRevisions = false;
doc.ShowSpellingErrors = false;

if (!Directory.Exists(startupPath + "\\" + filename1.Split('.')[0]))
{
     Directory.CreateDirectory(startupPath + "\\" + filename1.Split('.')[0]);
}

//Opens the word document and fetch each page and converts to image
foreach (Microsoft.Office.Interop.Word.Window window in doc.Windows)
{
      foreach (Microsoft.Office.Interop.Word.Pane pane in window.Panes)
      {
            for (var i = 1; i <= pane.Pages.Count; i++)
            {
                 var page = pane.Pages[i];
                 var bits = page.EnhMetaFileBits;
                 var target = Path.Combine(startupPath + "\\" + filename1.Split('.')[0], string.Format("{1}_page_{0}", i, filename1.Split('.')[0]));

                 try
                 {
                     using (var ms = new MemoryStream((byte[])(bits)))
                     {
                          var image = System.Drawing.Image.FromStream(ms);
                          var pngTarget = Path.ChangeExtension(target, "png");
                          image.Save(pngTarget, ImageFormat.Png);
                     }
                 }
                 catch (System.Exception ex)
                 { }
         }
    }
}
doc.Close(Type.Missing, Type.Missing, Type.Missing);
app.Quit(Type.Missing, Type.Missing, Type.Missing);
MessageFilter.Revoke();