Open XML – 如何在docx文档中添加水印

我正在尝试获取现有文档，如果标题不存在，请创建一个，然后在对角线上标题为“DRAFT”的标题中添加水印。 我已经按照这里发布的示例进行了操作，如果标题已经存在，我会将代码添加到添加水印的位置。

当前的问题是，当我添加新标题，添加对文档的引用，然后将水印添加到标题时，文档已损坏，无法再在Word 2010中打开。

为了测试我一直在做以下事情：从页面本身创建一个新的word文档，在页面的主要部分使用“TestDoc”文本。 以“TestDoc.docx”保存到我的桌面并关闭该文件。 然后我从Visual Studio运行应用程序。 下面的代码将始终使其损坏。 如果我在文件中添加一个没有文字的标题，然后点击保存，水印将正确显示。

这是我到目前为止：

using System; using System.Collections.Generic; using System.Linq; using System.Text; using DocumentFormat.OpenXml; using DocumentFormat.OpenXml.Packaging; using DocumentFormat.OpenXml.Vml; using DocumentFormat.OpenXml.Vml.Office; using DocumentFormat.OpenXml.Vml.Wordprocessing; using DocumentFormat.OpenXml.Wordprocessing; using HorizontalAnchorValues = DocumentFormat.OpenXml.Vml.Wordprocessing.HorizontalAnchorValues; using Lock = DocumentFormat.OpenXml.Vml.Office.Lock; using VerticalAnchorValues = DocumentFormat.OpenXml.Vml.Wordprocessing.VerticalAnchorValues; namespace DocumentWatermarkTest { class Program { static void Main(string[] args) { var doc = WordprocessingDocument.Open(@"C:\Users\loggedinuser\Desktop\TestDoc.docx", true); AddWatermark(doc); doc.MainDocumentPart.Document.Save(); } static Header MakeHeader() { var header = new Header(); var paragraph = new Paragraph(); var run = new Run(); var text = new Text(); text.Text = ""; run.Append(text); paragraph.Append(run); header.Append(paragraph); return header; } static void AddWatermark(WordprocessingDocument doc) { if (doc.MainDocumentPart.HeaderParts.Count() == 0) { doc.MainDocumentPart.DeleteParts(doc.MainDocumentPart.HeaderParts); var newHeaderPart = doc.MainDocumentPart.AddNewPart(); var rId = doc.MainDocumentPart.GetIdOfPart(newHeaderPart); var headerRef = new HeaderReference(); headerRef.Id = rId; var sectionProps = doc.MainDocumentPart.Document.Body.Elements().LastOrDefault(); if (sectionProps == null) { sectionProps = new SectionProperties(); doc.MainDocumentPart.Document.Body.Append(sectionProps); } sectionProps.RemoveAllChildren(); sectionProps.Append(headerRef); newHeaderPart.Header = MakeHeader(); newHeaderPart.Header.Save(); } foreach (HeaderPart headerPart in doc.MainDocumentPart.HeaderParts) { var sdtBlock1 = new SdtBlock(); var sdtProperties1 = new SdtProperties(); var sdtId1 = new SdtId() { Val = 87908844 }; var sdtContentDocPartObject1 = new DocPartObjectSdt(); var docPartGallery1 = new DocPartGallery() { Val = "Watermarks" }; var docPartUnique1 = new DocPartUnique(); sdtContentDocPartObject1.Append(docPartGallery1); sdtContentDocPartObject1.Append(docPartUnique1); sdtProperties1.Append(sdtId1); sdtProperties1.Append(sdtContentDocPartObject1); var sdtContentBlock1 = new SdtContentBlock(); var paragraph2 = new Paragraph() { RsidParagraphAddition = "00656E18", RsidRunAdditionDefault = "00656E18" }; var paragraphProperties2 = new ParagraphProperties(); var paragraphStyleId2 = new ParagraphStyleId() { Val = "Header" }; paragraphProperties2.Append(paragraphStyleId2); var run1 = new Run(); var runProperties1 = new RunProperties(); var noProof1 = new NoProof(); var languages1 = new Languages() { EastAsia = "zh-TW" }; runProperties1.Append(noProof1); runProperties1.Append(languages1); var picture1 = new Picture(); var shapetype1 = new Shapetype() { Id = "_x0000_t136", CoordinateSize = "21600,21600", OptionalNumber = 136, Adjustment = "10800", EdgePath = "m@7,l@8,m@5,21600l@6,21600e" }; var formulas1 = new Formulas(); var formula1 = new Formula() { Equation = "sum #0 0 10800" }; var formula2 = new Formula() { Equation = "prod #0 2 1" }; var formula3 = new Formula() { Equation = "sum 21600 0 @1" }; var formula4 = new Formula() { Equation = "sum 0 0 @2" }; var formula5 = new Formula() { Equation = "sum 21600 0 @3" }; var formula6 = new Formula() { Equation = "if @0 @3 0" }; var formula7 = new Formula() { Equation = "if @0 21600 @1" }; var formula8 = new Formula() { Equation = "if @0 0 @2" }; var formula9 = new Formula() { Equation = "if @0 @4 21600" }; var formula10 = new Formula() { Equation = "mid @5 @6" }; var formula11 = new Formula() { Equation = "mid @8 @5" }; var formula12 = new Formula() { Equation = "mid @7 @8" }; var formula13 = new Formula() { Equation = "mid @6 @7" }; var formula14 = new Formula() { Equation = "sum @6 0 @5" }; formulas1.Append(formula1); formulas1.Append(formula2); formulas1.Append(formula3); formulas1.Append(formula4); formulas1.Append(formula5); formulas1.Append(formula6); formulas1.Append(formula7); formulas1.Append(formula8); formulas1.Append(formula9); formulas1.Append(formula10); formulas1.Append(formula11); formulas1.Append(formula12); formulas1.Append(formula13); formulas1.Append(formula14); var path1 = new Path() { AllowTextPath = DocumentFormat.OpenXml.Vml.BooleanValues.True, ConnectionPointType = ConnectValues.Custom, ConnectionPoints = "@9,0;@10,10800;@11,21600;@12,10800", ConnectAngles = "270,180,90,0" }; var textPath1 = new TextPath() { On = DocumentFormat.OpenXml.Vml.BooleanValues.True, FitShape = DocumentFormat.OpenXml.Vml.BooleanValues.True }; var shapeHandles1 = new Handles(); var shapeHandle1 = new Handle() { Position = "#0,bottomRight", XRange = "6629,14971" }; shapeHandles1.Append(shapeHandle1); var lock1 = new Lock { Extension = ExtensionHandlingBehaviorValues.Edit, TextLock = DocumentFormat.OpenXml.Vml.Office.BooleanValues.True, ShapeType = DocumentFormat.OpenXml.Vml.Office.BooleanValues.True }; shapetype1.Append(formulas1); shapetype1.Append(path1); shapetype1.Append(textPath1); shapetype1.Append(shapeHandles1); shapetype1.Append(lock1); var shape1 = new Shape() { Id = "PowerPlusWaterMarkObject357476642", Style = "position:absolute;left:0;text-align:left;margin-left:0;margin-top:0;width:527.85pt;height:131.95pt;rotation:315;z-index:-251656192;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin", OptionalString = "_x0000_s2049", AllowInCell = DocumentFormat.OpenXml.Vml.BooleanValues.False, FillColor = "silver", Stroked = DocumentFormat.OpenXml.Vml.BooleanValues.False, Type = "#_x0000_t136" }; var fill1 = new Fill() { Opacity = ".5" }; TextPath textPath2 = new TextPath() { Style = "font-family:\"Calibri\";font-size:1pt", String = "DRAFT" }; var textWrap1 = new TextWrap() { AnchorX = HorizontalAnchorValues.Margin, AnchorY = VerticalAnchorValues.Margin }; shape1.Append(fill1); shape1.Append(textPath2); shape1.Append(textWrap1); picture1.Append(shapetype1); picture1.Append(shape1); run1.Append(runProperties1); run1.Append(picture1); paragraph2.Append(paragraphProperties2); paragraph2.Append(run1); sdtContentBlock1.Append(paragraph2); sdtBlock1.Append(sdtProperties1); sdtBlock1.Append(sdtContentBlock1); headerPart.Header.Append(sdtBlock1); headerPart.Header.Save(); //break; } } } } 

更新：

现在可以通过更改文件的打开方式来解决此问题。 当我们将Main函数更改为：

 static void Main(string[] args) { //var doc = WordprocessingDocument.Open(@"C:\Users\loggedinuser\Desktop\TestDoc.docx", true); //AddWatermark(doc); //doc.MainDocumentPart.Document.Save(); byte[] sourceBytes = File.ReadAllBytes(@"C:\Users\loggedinuser\Desktop\TestDoc.docx"); MemoryStream inMemoryStream = new MemoryStream(); inMemoryStream.Write(sourceBytes, 0, (int)sourceBytes.Length); var doc = WordprocessingDocument.Open(inMemoryStream, true); AddWatermark(doc); doc.MainDocumentPart.Document.Save(); doc.Close(); doc.Dispose(); doc = null; using (FileStream fileStream = new FileStream(@"C:\Users\loggedinuser\Desktop\TestDoc.docx", System.IO.FileMode.Create)) { inMemoryStream.WriteTo(fileStream); } inMemoryStream.Close(); inMemoryStream.Dispose(); inMemoryStream = null; } 

该文档现在正确地打开了。 谢谢布拉德！

Answer 1

现在可以通过更改文件的打开方式来解决此问题。 当我们将Main函数更改为：

 static void Main(string[] args) { //var doc = WordprocessingDocument.Open(@"C:\Users\loggedinuser\Desktop\TestDoc.docx", true); //AddWatermark(doc); //doc.MainDocumentPart.Document.Save(); byte[] sourceBytes = File.ReadAllBytes(@"C:\Users\loggedinuser\Desktop\TestDoc.docx"); MemoryStream inMemoryStream = new MemoryStream(); inMemoryStream.Write(sourceBytes, 0, (int)sourceBytes.Length); var doc = WordprocessingDocument.Open(inMemoryStream, true); AddWatermark(doc); doc.MainDocumentPart.Document.Save(); doc.Close(); doc.Dispose(); doc = null; using (FileStream fileStream = new FileStream(@"C:\Users\loggedinuser\Desktop\TestDoc.docx", System.IO.FileMode.Create)) { inMemoryStream.WriteTo(fileStream); } inMemoryStream.Close(); inMemoryStream.Dispose(); inMemoryStream = null; } 

该文档现在正确地打开了。 感谢Sonoma Partners的同事Brad B.找到了这个！

Answer 2

删除该行

 doc.MainDocumentPart.DeleteParts(doc.MainDocumentPart.HeaderParts); 

并用类似的东西替换sectionproperties的检查

 if (doc.MainDocumentPart.Document.Body.Elements().Count == 0) 

编辑：

如果那么完整​​..看起来像这样：

 var sectionProps = null; if (doc.MainDocumentPart.Document.Body.Elements().Count == 0) { sectionProps = new SectionProperties(); doc.MainDocumentPart.Document.Body.Append(sectionProps); } else { sectionProps = doc.MainDocumentPart.Document.Body.Elements().Last(); }