C#采用OpenXml给word里面插入图片

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using System.IO;
using DW = DocumentFormat.OpenXml.Drawing.Wordprocessing;
using PIC = DocumentFormat.OpenXml.Drawing.Pictures;
using A = DocumentFormat.OpenXml.Drawing;

namespace AddPictureIntoWord
{
public class Program
{
public static void Main(string[] args)
{
string picPath = "u=639047729,3872612606&fm=11&gp=0.bmp";
string filePath = "Test.docx";
AddPictureIntoWord(filePath, picPath);
}

public static void AddPictureIntoWord(string filePath, string picturePath)
{
using (WordprocessingDocument doc = WordprocessingDocument.Open(filePath, true))
{
string picType = picturePath.Split('.').Last();
ImagePartType imagePartType;
ImagePart imagePart = null;
// 通过后缀名判断图片类型, true 表示忽视大小写
if (Enum.TryParse<ImagePartType>(picType, true, out imagePartType))
{
imagePart = doc.MainDocumentPart.AddImagePart(imagePartType);
}

imagePart.FeedData(File.Open(picturePath, FileMode.Open)); // 读取图片二进制流
AddImageToBody(doc, doc.MainDocumentPart.GetIdOfPart(imagePart));
}
}

// 摘抄自http://msdn.microsoft.com/EN-US/library/office/bb497430(v=office.15).aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-5
private static void AddImageToBody(WordprocessingDocument wordDoc, string relationshipId)
{
// Define the reference of the image.
var element =
new Drawing(
new DW.Inline(
new DW.Extent() { Cx = 990000L, Cy = 792000L }, // 调节图片大小
new DW.EffectExtent()
{
LeftEdge = 0L,
TopEdge = 0L,
RightEdge = 0L,
BottomEdge = 0L
},
new DW.DocProperties()
{
Id = (UInt32Value)1U,
Name = "Picture 1"
},
new DW.NonVisualGraphicFrameDrawingProperties(
new A.GraphicFrameLocks() { NoChangeAspect = true }),
new A.Graphic(
new A.GraphicData(
new PIC.Picture(
new PIC.NonVisualPictureProperties(
new PIC.NonVisualDrawingProperties()
{
Id = (UInt32Value)0U,
Name = "New Bitmap Image.jpg"
},
new PIC.NonVisualPictureDrawingProperties()),
new PIC.BlipFill(
new A.Blip(
new A.BlipExtensionList(
new A.BlipExtension()
{
Uri =
"{28A0092B-C50C-407E-A947-70E740481C1C}"
})
)
{
Embed = relationshipId,
CompressionState =
A.BlipCompressionValues.Print
},
new A.Stretch(
new A.FillRectangle())),
new PIC.ShapeProperties(
new A.Transform2D(
new A.Offset() { X = 0L, Y = 0L },
new A.Extents() { Cx = 990000L, Cy = 792000L }), //与上面的对准
new A.PresetGeometry(
new A.AdjustValueList()
) { Preset = A.ShapeTypeValues.Rectangle }))
) { Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture" })
)
{
DistanceFromTop = (UInt32Value)0U,
DistanceFromBottom = (UInt32Value)0U,
DistanceFromLeft = (UInt32Value)0U,
DistanceFromRight = (UInt32Value)0U,
EditId = "50D07946"
});

// Append the reference to body, the element should be in a Run.
wordDoc.MainDocumentPart.Document.Body.AppendChild(new Paragraph(new Run(element)));
}
}
}

首先图片300*300对应的图片大小为：7.935cm*7.035cm,至于如何计算可以参考下面的计算换算规则：

然而Open xml中的度量单位为EMU（全称为 English Metric Unit)，1cm =360000EMUS,所以7.935cm=7.935*360000=2857500, 更多内容你可以参考下面的文章介绍：http://startbigthinksmall.wordpress.com/2010/01/04/points-inches-and-emus-measuring-units-in-office-open-xml/