插入水印会在文档页眉结尾处添加换行，导致文档内容错乱 about aspose.words-for-.net HOT 10 CLOSED

private void InsertWatermarkImageToWord(Document doc, string strImgPath, string ContractCode)
{
    doc.AcceptAllRevisions();

    Bookmark bookmark = doc.Range.Bookmarks["合同编号"];

    if (bookmark != null)
    {
        string name = bookmark.Name;
        string text = bookmark.Text;
        bookmark.Name = "合同编号";
        bookmark.Text = ContractCode;
    }

    Shape watermark = new Shape(doc, ShapeType.Image);
    watermark.ImageData.SetImage(strImgPath);
    watermark.Left = 100;
    watermark.Top = 400;
    watermark.Width = 70;
    watermark.Height = 21;
    watermark.WrapType = WrapType.None;
    watermark.BehindText = true;
    watermark.RelativeHorizontalPosition = RelativeHorizontalPosition.Page;
    watermark.RelativeVerticalPosition = RelativeVerticalPosition.Page;

    // 循环每页，将水印插入到文档每页中
    foreach (Section sect in doc.Sections)
    {
        InsertWatermarkImgIntoHeader(watermark, sect, HeaderFooterType.HeaderFirst);
        InsertWatermarkImgIntoHeader(watermark, sect, HeaderFooterType.HeaderPrimary);
        InsertWatermarkImgIntoHeader(watermark, sect, HeaderFooterType.HeaderEven);
    }
}

private void InsertWatermarkImgIntoHeader(Shape watermark, Section sect, HeaderFooterType headerType)
{
    HeaderFooter header = sect.HeadersFooters[headerType];
    if (header != null)
    {
        if (header.Paragraphs.Count == 0)
            header.AppendChild(new Paragraph(sect.Document));

        header.FirstParagraph.AppendChild(watermark.Clone(true));
    }
}

private static void InsertWatermarkImgIntoHeader(Shape watermark, Section sect, HeaderFooterType headerType)
{
    HeaderFooter header = sect.HeadersFooters[headerType];
    if (header == null)
        sect.HeadersFooters.Add(new HeaderFooter(sect.Document, headerType));

    if (header.Paragraphs.Count == 0)
        header.AppendChild(new Paragraph(sect.Document));

    header.FirstParagraph.AppendChild(watermark.Clone(true));
}