如何在Word首个页脚插入图片并设置显示范围与位置？

已通过C# OpenXML SDK实现Word页脚文本插入，现有代码如下：

static void Main(string[] args)
{
    CreateFooter(@"D:\1.docx");
}

static void CreateFooter(String documentPath)
{
    using (WordprocessingDocument document = WordprocessingDocument.Open(documentPath, true))
    {
        MainDocumentPart mainDocumentPart = document.MainDocumentPart;
        mainDocumentPart.DeleteParts(mainDocumentPart.FooterParts);

        FooterPart footerPart = mainDocumentPart.AddNewPart<FooterPart>();
        string footerPartId = mainDocumentPart.GetIdOfPart(footerPart);

        GenerateFooter(footerPart);

        var sections = mainDocumentPart.Document.Body.Elements<SectionProperties>().FirstOrDefault();
        sections.RemoveAllChildren<FooterReference>();
        sections.PrependChild<FooterReference>(new FooterReference() { Id = footerPartId });
    }    
}

static void GenerateFooter(FooterPart part)
{
    Footer footer1 = new Footer() { MCAttributes = new MarkupCompatibilityAttributes() { Ignorable = "w14 wp14" } };
    footer1.AddNamespaceDeclaration("wpc", "http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas");
    footer1.AddNamespaceDeclaration("mc", "http://schemas.openxmlformats.org/markup-compatibility/2006");
    footer1.AddNamespaceDeclaration("o", "urn:schemas-microsoft-com:office:office");
    footer1.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");
    footer1.AddNamespaceDeclaration("m", "http://schemas.openxmlformats.org/officeDocument/2006/math");
    footer1.AddNamespaceDeclaration("v", "urn:schemas-microsoft-com:vml");
    footer1.AddNamespaceDeclaration("wp14", "http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing");
    footer1.AddNamespaceDeclaration("wp", "http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing");
    footer1.AddNamespaceDeclaration("w10", "urn:schemas-microsoft-com:office:word");
    footer1.AddNamespaceDeclaration("w", "http://schemas.openxmlformats.org/wordprocessingml/2006/main");
    footer1.AddNamespaceDeclaration("w14", "http://schemas.microsoft.com/office/word/2010/wordml");
    footer1.AddNamespaceDeclaration("wpg", "http://schemas.microsoft.com/office/word/2010/wordprocessingGroup");
    footer1.AddNamespaceDeclaration("wpi", "http://schemas.microsoft.com/office/word/2010/wordprocessingInk");
    footer1.AddNamespaceDeclaration("wne", "http://schemas.microsoft.com/office/word/2006/wordml");
    footer1.AddNamespaceDeclaration("wps", "http://schemas.microsoft.com/office/word/2010/wordprocessingShape");

    Paragraph paragraph1 = new Paragraph() { RsidParagraphAddition = "00164C17", RsidRunAdditionDefault = "00164C17" };

    ParagraphProperties paragraphProperties1 = new ParagraphProperties();
    ParagraphStyleId paragraphStyleId1 = new ParagraphStyleId() { Val = "Footers" };
    using (FileStream stream = File.OpenRead(@"C:\Users\Амир\Downloads\Подпись.png"))
    {
        var img = Bitmap.FromStream(stream);

        paragraphProperties1.Append(paragraphStyleId1);

        Run run1 = new Run();
        Text text1 = new Text();
        text1.Text = "Footessr";

        run1.Append(text1);

        paragraph1.Append(paragraphProperties1);
        paragraph1.Append(run1);

        footer1.Append(paragraph1);

        part.Footer = footer1;
    }
}

但存在三个待解决问题：

• 在页脚中插入图片
• 设置页脚仅显示在第一页
• 将页脚内容定位到右下角

1. 页脚插入图片 #

需先向FooterPart添加ImagePart并写入图片流，再构建Drawing元素嵌入段落。修改GenerateFooter方法如下：

// 需添加以下命名空间引用：
// using DocumentFormat.OpenXml.Drawing;
// using DocumentFormat.OpenXml.Drawing.Wordprocessing;
// using DocumentFormat.OpenXml.Drawing.Pictures;

static void GenerateFooter(FooterPart part)
{
    Footer footer1 = new Footer() { MCAttributes = new MarkupCompatibilityAttributes() { Ignorable = "w14 wp14" } };
    // 保留所有命名空间声明...

    Paragraph paragraph1 = new Paragraph() { RsidParagraphAddition = "00164C17", RsidRunAdditionDefault = "00164C17" };

    ParagraphProperties paragraphProperties1 = new ParagraphProperties();
    ParagraphStyleId paragraphStyleId1 = new ParagraphStyleId() { Val = "Footers" };
    // 添加右对齐，同步解决第三个定位问题
    Justification justification1 = new Justification() { Val = JustificationValues.Right };
    paragraphProperties1.Append(paragraphStyleId1);
    paragraphProperties1.Append(justification1);

    using (FileStream stream = File.OpenRead(@"C:\Users\Амир\Downloads\Подпись.png"))
    {
        // 1. 添加ImagePart并写入图片数据
        ImagePart imagePart = part.AddImagePart(ImagePartType.Png);
        imagePart.FeedData(stream);
        string imageRelId = part.GetIdOfPart(imagePart);

        // 2. 构建图片对应的Drawing元素
        Drawing drawing = new Drawing(
            new Inline(
                new Extent() { Cx = 990000, Cy = 792000 }, // 图片尺寸，可按需调整
                new EffectExtent() { LeftEdge = 0L, TopEdge = 0L, RightEdge = 0L, BottomEdge = 0L },
                new DocProperties() { Id = (UInt32Value)1U, Name = "Footer Image" },
                new NonVisualGraphicFrameDrawingProperties(
                    new GraphicFrameLocks() { NoChangeAspect = true }),
                new Graphic(
                    new GraphicData(
                        new Picture(
                            new NonVisualPictureProperties(
                                new NonVisualDrawingProperties() { Id = (UInt32Value)0U, Name = "Подпись.png" },
                                new NonVisualPictureDrawingProperties()),
                            new BlipFill(
                                new Blip(
                                    new BlipExtensionList(
                                        new BlipExtension() { Uri = "{28A0092B-C50C-407E-A947-70E740481C1C}" })
                                ) { Embed = imageRelId, CompressionState = BlipCompressionValues.Print },
                                new Stretch(
                                    new FillRectangle())),
                            new ShapeProperties(
                                new Transform2D(
                                    new Offset() { X = 0L, Y = 0L },
                                    new Extents() { Cx = 990000, Cy = 792000 }),
                                new PresetGeometry(
                                    new AdjustValueList()) { Preset = ShapeTypeValues.Rectangle }))
                    ) { Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture" })
            ) { DistanceFromTop = (UInt32Value)0U, DistanceFromBottom = (UInt32Value)0U, DistanceFromLeft = (UInt32Value)0U, DistanceFromRight = (UInt32Value)0U, EditId = "50D07946" });

        // 3. 创建包含图片的Run
        Run imageRun = new Run();
        imageRun.Append(drawing);

        // 4. 保留文本Run（可选）
        Run textRun = new Run();
        Text text1 = new Text();
        text1.Text = "Footessr";
        textRun.Append(text1);

        paragraph1.Append(paragraphProperties1);
        paragraph1.Append(textRun);
        paragraph1.Append(imageRun);

        footer1.Append(paragraph1);
        part.Footer = footer1;
    }
}

2. 设置页脚仅显示在第一页 #

修改CreateFooter方法中的SectionProperties处理逻辑，启用首页不同并指定Footer类型为First：

static void CreateFooter(String documentPath)
{
    using (WordprocessingDocument document = WordprocessingDocument.Open(documentPath, true))
    {
        MainDocumentPart mainDocumentPart = document.MainDocumentPart;
        mainDocumentPart.DeleteParts(mainDocumentPart.FooterParts);

        FooterPart footerPart = mainDocumentPart.AddNewPart<FooterPart>();
        string footerPartId = mainDocumentPart.GetIdOfPart(footerPart);

        GenerateFooter(footerPart);

        var sections = mainDocumentPart.Document.Body.Elements<SectionProperties>().FirstOrDefault();
        if (sections == null)
        {
            // 文档无SectionProperties时，创建新的并添加到Body末尾
            sections = new SectionProperties();
            mainDocumentPart.Document.Body.Append(sections);
        }

        sections.RemoveAllChildren<FooterReference>();
        // 启用首页不同设置
        if (sections.Elements<DifferentFirstPage>().FirstOrDefault() == null)
        {
            sections.PrependChild<DifferentFirstPage>(new DifferentFirstPage());
        }
        // 指定当前Footer为首页专属
        sections.PrependChild<FooterReference>(new FooterReference() { Id = footerPartId, Type = HeaderFooterValues.First });
    }    
}

3. 页脚内容定位到右下角 #

核心是设置段落右对齐，已包含在上述GenerateFooter方法的paragraphProperties1.Append(justification1);代码中，对应代码：

Justification justification1 = new Justification() { Val = JustificationValues.Right };
paragraphProperties1.Append(justification1);

若需要更精确的偏移定位，可添加TabStop设置：

// 添加右侧Tab位（对应页面宽度914400缇，可按需调整）
TabStop tabStop = new TabStop() { Val = TabStopValues.Right, Position = "914400" };
paragraphProperties1.Append(new TabStops(tabStop));

然后在文本前添加Tab字符：

Text text1 = new Text();
text1.Text = "\tFootessr";

整合后的完整代码可直接运行，同时解决三个问题。

内容的提问来源于stack exchange，提问作者Student