Move Watermark in front of Images Tables in main Story of Word Document using C# .NET

[AlexanderNovickov]

Dear Sir or Madam,

I insert a watermark image and a regular image in my document. Currently image in the document overlaps the watermark. Is there a way to change it and make watermark image overlap the images in the document?
Regards,
AlexTest-Current assets - cash and cash equivalents-30062018-Test (2).pdf (208.5 KB)

[awais.hafeez]

@AlexanderNovickov,

The problem occurs because watermark shape resides inside header footer story and main content is inside body story (please see Story class). If you insert a watermark using Microsoft Word 2016, you will observe the same behavior. All content of document’s header/footer is always behind the main content of the document.

However, you may overcome this problem by manually inserting watermarks in each Page. You can achieve this by moving the cursor to the first Run in each Page of your document and then making those Runs as an anchor points for your watermarks. Please see the following code for example:

Document doc = new Document(MyDir + @"input.doc");

Node[] runs = doc.GetChildNodes(NodeType.Run, true).ToArray();
for (int i = 0; i < runs.Length; i++)
{
    Run run = (Run)runs[i];
    int length = run.Text.Length;

    Run currentNode = run;
    for (int x = 1; x < length; x++)
    {
        currentNode = SplitRun(currentNode, 1);
    }
}

DocumentBuilder builder = new DocumentBuilder(doc);
PageSetup ps = builder.PageSetup;

NodeCollection smallRuns = doc.GetChildNodes(NodeType.Run, true);
LayoutCollector collector = new LayoutCollector(doc);

int pageIndex = 1;
foreach (Run run in smallRuns)
{
    if (collector.GetStartPageIndex(run) == pageIndex)
    {
        Shape watermark = new Shape(doc, Aspose.Words.Drawing.ShapeType.TextPlainText);
        watermark.RelativeHorizontalPosition = RelativeHorizontalPosition.Page;
        watermark.RelativeVerticalPosition = RelativeVerticalPosition.Page;

        watermark.Width = 300;
        watermark.Height = 70;
        watermark.HorizontalAlignment = HorizontalAlignment.Center;
        watermark.VerticalAlignment = VerticalAlignment.Center;

        watermark.Rotation = -40;
        watermark.Fill.Color = Color.Gray;
        watermark.StrokeColor = Color.Gray;

        watermark.TextPath.Text = "watermarkText";
        watermark.TextPath.FontFamily = "Arial";

        watermark.Name = string.Format("WaterMark_{0}", Guid.NewGuid());
        watermark.WrapType = WrapType.None;

        builder.MoveTo(run);
        builder.InsertNode(watermark);

        pageIndex++;
    }
}

doc.Save(MyDir + @"output\18.3.doc");
///////////////////////////////////////
private static Run SplitRun(Run run, int position)
{
    Run afterRun = (Run)run.Clone(true);
    afterRun.Text = run.Text.Substring(position);
    run.Text = run.Text.Substring((0), (0) + (position));
    run.ParentNode.InsertAfter(afterRun, run);
    return afterRun;
}

[AlexanderNovickov]

Hi Awais,

Thank you very much
Alex

[awais.hafeez]

@AlexanderNovickov,

Thanks for your feedback. In case you have further inquiries or need any help, please let us know.