使用Aspose.Words组件给word加水印

女爷i 2023-06-07 15:26 35阅读 0赞

/// <summary>
           /// Inserts a watermark into a document.
           /// </summary>
           /// <param name="doc">The input document.</param>
           /// <param name="watermarkText">Text of the watermark.</param>
           private static void InsertWatermarkText(Document doc, string watermarkText)
           {
               // Create a watermark shape. This will be a WordArt shape. 
               // You are free to try other shape types as watermarks.
               Shape watermark = new Shape(doc, ShapeType.TextPlainText);
                
               // Set up the text of the watermark.
               watermark.TextPath.Text = watermarkText;
               watermark.TextPath.FontFamily = "Arial";
               watermark.Width = 500;
               watermark.Height = 100;
               // Text will be directed from the bottom-left to the top-right corner.
               watermark.Rotation = -40;
               // Remove the following two lines if you need a solid black text.
               watermark.Fill.Color = Color.Gray; // Try LightGray to get more Word-style watermark
               watermark.StrokeColor = Color.Gray; // Try LightGray to get more Word-style watermark
     
               // Place the watermark in the page center.
               watermark.RelativeHorizontalPosition = RelativeHorizontalPosition.Page;
               watermark.RelativeVerticalPosition = RelativeVerticalPosition.Page;
               watermark.WrapType = WrapType.None;
               watermark.VerticalAlignment = VerticalAlignment.Center;
               watermark.HorizontalAlignment = HorizontalAlignment.Center;
     
               // Create a new paragraph and append the watermark to this paragraph.
               Paragraph watermarkPara = new Paragraph(doc);
               watermarkPara.AppendChild(watermark);
     
               // Insert the watermark into all headers of each document section.
               foreach (Section sect in doc.Sections)
               {
                   // There could be up to three different headers in each section, since we want
                   // the watermark to appear on all pages, insert into all headers.
                   InsertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HeaderPrimary);
                   InsertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HeaderFirst);
                   InsertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HeaderEven);
               }
           }
     
           private static void InsertWatermarkIntoHeader(Paragraph watermarkPara, Section sect, HeaderFooterType headerType)
           {
               HeaderFooter header = sect.HeadersFooters[headerType];
     
               if (header == null)
               {
                   // There is no header of the specified type in the current section, create it.
                   header = new HeaderFooter(sect.Document, headerType);
                   sect.HeadersFooters.Add(header);
               }
     
               // Insert a clone of the watermark into the header.
               header.AppendChild(watermarkPara.Clone(true));
           }

string exeDir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + Path.DirectorySeparatorChar;
               string dataDir = new Uri(new Uri(exeDir), @"../../Data/").LocalPath;
     
               Document doc = new Document(dataDir + "TestFile.doc");
               InsertWatermarkText(doc, "CONFIDENTIAL");
               doc.Save(dataDir + "TestFile Out.doc");