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c# - Open XML - 如何向 docx 文档添加水印

转载 作者:可可西里 更新时间:2023-11-01 08:47:31 26 4
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我正在尝试获取现有文档,如果标题不存在,请创建一个,然后在标题中添加一个水印,上面对角地写着“DRAFT”。我按照一个例子发布了 here如果标题已经存在,我已经将代码添加到添加水印的位置。

当前的问题是当我添加一个新的标题,添加对文档的引用,然后将水印添加到标题时,文档损坏并且无法再在 Word 2010 中打开。

为了测试,我一直在执行以下操作:从 word 本身创建一个新的 word 文档,在页面的主要部分中包含文本“TestDoc”。将文件另存为“TestDoc.docx”并关闭文件。然后我从 Visual Studio 运行应用程序。下面的代码总是会使其损坏。如果我向文件中添加一个没有文本的标题,然后点击保存,水印将正确显示。

这是我目前所拥有的:

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<HeaderPart>();
var rId = doc.MainDocumentPart.GetIdOfPart(newHeaderPart);
var headerRef = new HeaderReference();
headerRef.Id = rId;
var sectionProps = doc.MainDocumentPart.Document.Body.Elements<SectionProperties>().LastOrDefault();
if (sectionProps == null)
{
sectionProps = new SectionProperties();
doc.MainDocumentPart.Document.Body.Append(sectionProps);
}
sectionProps.RemoveAllChildren<HeaderReference>();
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:

现在通过更改打开文件的方式解决了这个问题。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;
}

文档现在可以在 word 中正确打开。谢谢布拉德!

最佳答案

现在通过更改打开文件的方式解决了这个问题。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;
}

文档现在可以在 word 中正确打开。感谢 Sonoma Partners 的同事 Brad B. 发现了这个!

关于c# - Open XML - 如何向 docx 文档添加水印,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7002341/

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