最近客戶要求開發一個功能：
在系統中上傳文件后，自動個文檔每頁加上密集水印和二維碼，打印紙質文檔后掃描二維碼自動打開系統電子檔，防止其他人隨意篡改。
簡單做了一個DEMO程序：
程序截圖
最終效果圖：
二維碼生成用的：ThoughtWorks.QRCode
操作文檔用的：Aspose
大致邏輯：首先生成好二維碼圖片，打開文檔在文檔頁眉處追加二維碼圖片，同時在文檔每一頁追加水印（這個地方客戶要求插入密集型多個水印，我看了標准微軟Word操作，一次只能插入一個，這塊實現我用了個勺方法，多次調用插入水印方法具體看后面代碼）
/************************************Start***************************插入水印，二維碼到Word邏輯********************************Start***********************************/
生成二維碼代碼段：
//生成二維碼
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)
{
//二維碼解碼
var codeDecoder = CodeDecoder(filepath);
}
return filepath;
}
將二維碼追加到文檔代碼段：
/// <summary>
/// 給word添加頁眉頁腳並將圖片插入到頁眉頁腳中
/// </summary>
/// <param name="doc">目標word路徑</param>
/// <param name="FilePath">保存后文檔路徑</param>
/// <param name="imgPath">圖片路徑</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);
// 創建其他頁的標題
pageSetup.HeaderDistance = 20;
builder.MoveToHeaderFooter(HeaderFooterType.HeaderPrimary);
//將絕對位置的圖像插入頭/左上角。
//從頂部/左邊緣的頁面的距離被設置為10點。
builder.InsertImage(imgPath, RelativeHorizontalPosition.Page, 280, RelativeVerticalPosition.Page, 10, 50, 50, WrapType.Through);
//創建頁面以外的頁面。
builder.MoveToHeaderFooter(HeaderFooterType.FooterPrimary);
doc.Save(FilePath);
return FilePath;
}
將水印追加到文檔中：
/// <summary>
/// 插入水印到Word文檔
/// </summary>
/// <param name="doc">word文檔路徑</param>
/// <param name="watermarkText">水印文字</param>
/// <param name="RH">水印相對水平位置</param>
/// <param name="RV">水印相對垂直位置</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)
{
// 實例化一個水印圖片
Aspose.Words.Drawing.Shape watermark = new Aspose.Words.Drawing.Shape(doc, ShapeType.TextPlainText);
//設置水印文字的樣式
watermark.TextPath.Text = watermarkText;
watermark.TextPath.FontFamily = "Arial";
watermark.Width = 200;
watermark.Height = 100;
// 水印的方向設置
watermark.Rotation = -20;
// 水印線條顏色填充
watermark.Fill.Color = Color.Gray ;
watermark.StrokeColor = Color.Gray ;
//設置水印圖片放置在每頁的正中間
watermark.RelativeHorizontalPosition = RH;
watermark.RelativeVerticalPosition = RV;
watermark.WrapType = WrapType.None;
watermark.VerticalAlignment = VA;
watermark.HorizontalAlignment = HA;
// 初始化一個段落，將水印追加到段落中
Paragraph watermarkPara = new Paragraph(doc);
watermarkPara.AppendChild(watermark);
// 循環每頁，將水印插入到文檔每頁中
foreach (Section sect in doc.Sections)
{
// 插入水印到文檔每頁
InsertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HeaderPrimary);
InsertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HeaderFirst);
InsertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HeaderEven);
}
}
/// <summary>
/// 插入水印到文檔頭部分
/// </summary>
/// <param name="watermarkPara">水印</param>
/// <param name="sect">文檔區域</param>
/// <param name="headerType">文檔頭類型</param>
private static void InsertWatermarkIntoHeader(Paragraph watermarkPara, Section sect, HeaderFooterType headerType)
{
Aspose.Words.HeaderFooter header = sect.HeadersFooters[headerType];
if (header == null)
{
//如果沒有文檔頭，或者找不到頭部分，自動創建一個新的文檔頭部分。
header = new Aspose.Words.HeaderFooter(sect.Document, headerType);
sect.HeadersFooters.Add(header);
}
//復制水印，並追加到文檔頭部分
header.AppendChild(watermarkPara.Clone(true));
}
密集型水印，多個水印的插入
//插入二維碼水印到word（方法重復調用，每次插入位置不一樣就可以實現了）
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，二維碼到Word邏輯***************************END****************************************/
/****************************************Start***********************插入水印，二維碼到Excel邏輯***************************Start****************************************/
/// <summary>
/// 插入水印，二維碼到excel文檔
/// </summary>
/// <param name="FileName">目標文檔路徑</param>
/// <param name="watermarkText">水印文字</param>
/// <param name="FilePath">保存后文檔路徑</param>
protected string InsertWatermarkIntoAndQRCodeToWorkBook(string FileName, string watermarkText,string FilePath,string imgPath)
{
//初始化工作簿
Workbook workbook = new Workbook(FileName);
//獲取工作簿表集合
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);
//插入二維碼
InsertQrCodeToXls(workbook, imgPath, sheet);
}
//保存excel文檔
workbook.Save(FilePath);
return FilePath;
}
/// <summary>
/// 插入二維碼到XLS頁眉頁腳
/// </summary>
/// <param name="workbook">目標XLS文檔</param>
/// <param name="imgPath">二維碼圖片路徑</param>
/// <param name="sheet">工作表</param>
protected void InsertQrCodeToXls(Workbook workbook, string imgPath, Worksheet sheet)
{
//添加頁眉，並在頁眉中添加圖片
FileStream inFile;
byte[] binaryData;
inFile = new System.IO.FileStream(imgPath, System.IO.FileMode.Open, System.IO.FileAccess.Read);
binaryData = 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">目標Excel文檔</param>
/// <param name="sheet">目標工作簿</param>
/// <param name="watermarkText">水印文字</param>
/// <param name="upperLeftRow"></param>
/// <param name="top">距離頂部距離</param>
/// <param name="upperLeftColumn"></param>
/// <param name="left">距離左邊距離</param>
/// <param name="height">水印高度</param>
/// <param name="width">水印寬度</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);
//用藝術字體填充
MsoFillFormat wordArtFormat = wordart.FillFormat;
//設置顏色
wordArtFormat.ForeColor = System.Drawing.Color.Gray;
//設置透明度
wordArtFormat.Transparency = 0.5;
//設置線條不可見
MsoLineFormat lineFormat = wordart.LineFormat;
lineFormat.IsVisible = false;
}
/****************************************END***********************插入水印，二維碼到Excel邏輯***************************END****************************************/