C# 给PowerPoint文档设置背景颜色和背景图片

小鱼儿 2024-02-18 18:26 7阅读 0赞

给文档设置背景颜色或添加背景图片可以让文档变得更加美观、更具有吸引力。这篇文章将介绍如何使用[Free Spire.Presentation][]组件和C\#给PowerPoint设置纯色背景颜色、渐变背景颜色以及添加背景图片。

在使用以下代码前需要先创建一个C\#应用程序并引用Spire.Presentation.dll到工程中。

**设置纯色背景颜色**

//加载PowerPoint文档
    Presentation ppt = new Presentation();
    ppt.LoadFromFile("Input.pptx");
     
    //设置文档的背景填充模式为纯色填充，设置颜色
    ppt.Slides[0].SlideBackground.Type = BackgroundType.Custom;
    ppt.Slides[0].SlideBackground.Fill.FillType = FillFormatType.Solid;
    ppt.Slides[0].SlideBackground.Fill.SolidColor.Color = Color.Beige;
     
    //保存文档
    ppt.SaveToFile("Solidbackground.pptx",FileFormat.Pptx2010);

![20180302151735093][]

**设置渐变背景颜色**

//加载PowerPoint文档
    Presentation ppt = new Presentation();
    ppt.LoadFromFile("Input.pptx");
     
    //设置文档的背景填充模式为渐变色填充，设置颜色
    ppt.Slides[0].SlideBackground.Type = BackgroundType.Custom;
    ppt.Slides[0].SlideBackground.Fill.FillType = FillFormatType.Gradient;
    ppt.Slides[0].SlideBackground.Fill.Gradient.GradientStops.Append(0f,KnownColors.White);
    ppt.Slides[0].SlideBackground.Fill.Gradient.GradientStops.Append(1f,KnownColors.MediumSeaGreen);
     
    //保存文档
    ppt.SaveToFile("Gradientbackground.pptx",FileFormat.Pptx2010);

![20180302151806097][]

**添加背景图片**

//加载PowerPoint文档
    Presentation ppt = new Presentation();
    ppt.LoadFromFile("Input.pptx");
     
    //设置文档的背景填充模式为图片填充
    ppt.Slides[0].SlideBackground.Type = Spire.Presentation.Drawing.BackgroundType.Custom;
    ppt.Slides[0].SlideBackground.Fill.FillType = FillFormatType.Picture;
    ppt.Slides[0].SlideBackground.Fill.PictureFill.FillType = PictureFillType.Stretch;
     
    //设置背景图片
    Image img = Image.FromFile("background.jpg");
    IImageData image = ppt.Images.Append(img);
    ppt.Slides[0].SlideBackground.Fill.PictureFill.Picture.EmbedImage = image;
     
    //保存文档
    ppt.SaveToFile("Imagebackground.pptx",FileFormat.Pptx2010);

![20180302152727201][]

[Free Spire.Presentation]: http://e-iceblue.cn/Introduce/Free-Spire-Presentation-NET.html
[20180302151735093]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/bba3f70b331f4deeb2ffb090196afecf.png
[20180302151806097]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/fc2417ff698b4e0887311282c14aa8bb.png
[20180302152727201]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/7ab34a65ebe2463ab565a5f465567e7d.png