最近客户要求开发一个功能：

                 在系统中上传文件后，自动个文档每页加上密集水印和二维码，打印纸质文档后扫描二维码自动打开系统电子档，防止其他人随意篡改。

简单做了一个DEMO程序：

             程序截图

            最终效果图：

  二维码生成用的：ThoughtWorks.QRCode

  操作文档用的：Aspose

   大致逻辑：首先生成好二维码图片，打开文档在文档页眉处追加二维码图片，同时在文档每一页追加水印（这个地方客户要求插入密集型多个水印，我看了标准微软Word操作，一次只能插入一个，这块实现我用了个勺方法，多次调用插入水印方法具体看后面代码）

/************************************Start***************************插入水印，二维码到Word逻辑********************************Start***********************************/

生成二维码代码段：

//生成二维码
protected string CreateQRCODE(string Codestring, string m_savefilepath, int QRCodeScale, int QRCodeVersion)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = QRCodeScale;
qrCodeEncoder.QRCodeVersion = QRCodeVersion;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Image image = qrCodeEncoder.Encode(Codestring, Encoding.UTF8);
string filename = DateTime.Now.ToString("yyyymmddhhmmssfff").ToString() + ".jpg";
string filepath = m_savefilepath + filename;
System.IO.FileStream fs = new System.IO.FileStream(filepath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);

fs.Close();
image.Dispose();
if (QRCodeScale >= 3)
{
//二维码解码
var codeDecoder = CodeDecoder(filepath);
}
return filepath;
}

将二维码追加到文档代码段：

/// <summary>
/// 给word添加页眉页脚并将图片插入到页眉页脚中
/// </summary>
/// <param name="doc">目标word路径</param>
/// <param name="FilePath">保存后文档路径</param>
/// <param name="imgPath">图片路径</param>
protected string SetImageHeadOrFootDoc(Aspose.Words.Document doc,string FilePath,string imgPath,string Codestring)
{
DocumentBuilder builder = new DocumentBuilder(doc);

Section currentSection = builder.CurrentSection;

Aspose.Words.PageSetup pageSetup = currentSection.PageSetup;

pageSetup.HeaderDistance = 20;

builder.MoveToHeaderFooter(HeaderFooterType.HeaderFirst);

// 创建其他页的标题
pageSetup.HeaderDistance = 20;

builder.MoveToHeaderFooter(HeaderFooterType.HeaderPrimary);

//将绝对位置的图像插入头/左上角。
//从顶部/左边缘的页面的距离被设置为10点。
builder.InsertImage(imgPath, RelativeHorizontalPosition.Page, 280, RelativeVerticalPosition.Page, 10, 50, 50, WrapType.Through);

//创建页面以外的页面。
builder.MoveToHeaderFooter(HeaderFooterType.FooterPrimary);

doc.Save(FilePath);
return FilePath;
}

将水印追加到文档中：

/// <summary>
/// 插入水印到Word文档
/// </summary>
/// <param name="doc">word文档路径</param>
/// <param name="watermarkText">水印文字</param>
/// <param name="RH">水印相对水平位置</param>
/// <param name="RV">水印相对垂直位置</param>
/// <param name="VA">水印水平位置</param>
/// <param name="HA">水印垂直位置</param>
private static void InsertWatermarkTextToWord(Aspose.Words.Document doc, string watermarkText,RelativeHorizontalPosition RH,RelativeVerticalPosition RV,Aspose.Words.Drawing.VerticalAlignment VA,Aspose.Words.Drawing.HorizontalAlignment HA)
{
// 实例化一个水印图片
Aspose.Words.Drawing.Shape watermark = new Aspose.Words.Drawing.Shape(doc, ShapeType.TextPlainText);

//设置水印文字的样式
watermark.TextPath.Text = watermarkText;
watermark.TextPath.FontFamily = "Arial";
watermark.Width = 200;
watermark.Height = 100;
// 水印的方向设置
watermark.Rotation = -20;
// 水印线条颜色填充
watermark.Fill.Color = Color.Gray ;
watermark.StrokeColor = Color.Gray ;

//设置水印图片放置在每页的正中间
watermark.RelativeHorizontalPosition = RH;
watermark.RelativeVerticalPosition = RV;
watermark.WrapType = WrapType.None;
watermark.VerticalAlignment = VA;
watermark.HorizontalAlignment = HA;

// 初始化一个段落，将水印追加到段落中
Paragraph watermarkPara = new Paragraph(doc);
watermarkPara.AppendChild(watermark);

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

}

/// <summary>
/// 插入水印到文档头部分
/// </summary>
/// <param name="watermarkPara">水印</param>
/// <param name="sect">文档区域</param>
/// <param name="headerType">文档头类型</param>
private static void InsertWatermarkIntoHeader(Paragraph watermarkPara, Section sect, HeaderFooterType headerType)
{
Aspose.Words.HeaderFooter header = sect.HeadersFooters[headerType];

if (header == null)
{
//如果没有文档头，或者找不到头部分，自动创建一个新的文档头部分。
header = new Aspose.Words.HeaderFooter(sect.Document, headerType);
sect.HeadersFooters.Add(header);
}

//复制水印，并追加到文档头部分
header.AppendChild(watermarkPara.Clone(true));
}

密集型水印，多个水印的插入

//插入二维码水印到word（方法重复调用，每次插入位置不一样就可以实现了）
Aspose.Words.Document doc = new Aspose.Words.Document(DocPath);
InsertWatermarkTextToWord(doc, textFontContent.Text, RelativeHorizontalPosition.Page, RelativeVerticalPosition.Page, Aspose.Words.Drawing.VerticalAlignment.Center, Aspose.Words.Drawing.HorizontalAlignment.Left);
InsertWatermarkTextToWord(doc, textFontContent.Text, RelativeHorizontalPosition.Page, RelativeVerticalPosition.Page, Aspose.Words.Drawing.VerticalAlignment.Bottom, Aspose.Words.Drawing.HorizontalAlignment.Right);
InsertWatermarkTextToWord(doc, textFontContent.Text, RelativeHorizontalPosition.Page, RelativeVerticalPosition.Page, Aspose.Words.Drawing.VerticalAlignment.Bottom, Aspose.Words.Drawing.HorizontalAlignment.Left);
InsertWatermarkTextToWord(doc, textFontContent.Text, RelativeHorizontalPosition.Page, RelativeVerticalPosition.Page, Aspose.Words.Drawing.VerticalAlignment.Center, Aspose.Words.Drawing.HorizontalAlignment.Right);

 /****************************************END***********************插入水印，二维码到Word逻辑***************************END****************************************/

/****************************************Start***********************插入水印，二维码到Excel逻辑***************************Start****************************************/
/// <summary>
/// 插入水印，二维码到excel文档
/// </summary>
/// <param name="FileName">目标文档路径</param>
/// <param name="watermarkText">水印文字</param>
/// <param name="FilePath">保存后文档路径</param>
protected string InsertWatermarkIntoAndQRCodeToWorkBook(string FileName, string watermarkText,string FilePath,string imgPath)
{
//初始化工作簿
Workbook workbook = new Workbook(FileName);
//获取工作簿表集合
WorksheetCollection Wsheetc = workbook.Worksheets;

foreach (Worksheet sheet in Wsheetc) {
//插入水印
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 1, 1, 1, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 1, 1, 10, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 1, 1, 18, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 14, 1, 1, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 14, 1, 10, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 14, 1, 18, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 28, 1, 1, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 28, 1, 10, 1, 100, 100);
InsertWaterMarkToXLS(workbook, sheet, watermarkText, 28, 1, 18, 1, 100, 100);
//插入二维码
InsertQrCodeToXls(workbook, imgPath, sheet);
}

//保存excel文档
workbook.Save(FilePath);
return FilePath;
}
/// <summary>
/// 插入二维码到XLS页眉页脚
/// </summary>
/// <param name="workbook">目标XLS文档</param>
/// <param name="imgPath">二维码图片路径</param>
/// <param name="sheet">工作表</param>
protected void InsertQrCodeToXls(Workbook workbook, string imgPath, Worksheet sheet)
{

//添加页眉，并在页眉中添加图片
FileStream inFile;
byte[] binaryData;
inFile = new System.IO.FileStream(imgPath, System.IO.FileMode.Open, System.IO.FileAccess.Read);

binaryData = http://www.mamicode.com/new Byte[inFile.Length];

long bytesRead = inFile.Read(binaryData, 0, (int)inFile.Length);

Aspose.Cells.PageSetup pageSetup = sheet.PageSetup;

pageSetup.SetHeaderPicture(1, binaryData);

pageSetup.SetHeader(1, "&G");

pageSetup.SetHeader(2, "&A");

}
/// <summary>
/// 插入水印到XlS
/// </summary>
/// <param name="workbook">目标Excel文档</param>
/// <param name="sheet">目标工作簿</param>
/// <param name="watermarkText">水印文字</param>
/// <param name="upperLeftRow"></param>
/// <param name="top">距离顶部距离</param>
/// <param name="upperLeftColumn"></param>
/// <param name="left">距离左边距离</param>
/// <param name="height">水印高度</param>
/// <param name="width">水印宽度</param>
protected void InsertWaterMarkToXLS(Workbook workbook, Worksheet sheet, string watermarkText, int upperLeftRow, int top, int upperLeftColumn, int left, int height, int width)
{
//添加水印
Aspose.Cells.Drawing.Shape wordart = sheet.Shapes.AddTextEffect(MsoPresetTextEffect.TextEffect2, watermarkText, "Arial Black", 50, false, true, upperLeftRow, top, upperLeftColumn, left, height, width);

//用艺术字体填充
MsoFillFormat wordArtFormat = wordart.FillFormat;
//设置颜色
wordArtFormat.ForeColor = System.Drawing.Color.Gray;
//设置透明度
wordArtFormat.Transparency = 0.5;
//设置线条不可见
MsoLineFormat lineFormat = wordart.LineFormat;
lineFormat.IsVisible = false;
}
/****************************************END***********************插入水印，二维码到Excel逻辑***************************END****************************************/

Word,Excel插入密集水印和二维码