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PowerPoint文档（幻灯片）是一种常见的演示文档，在演讲，教学，产品演示等方面得到广泛的应用。本文将介绍如何通过编程的方式创建PowerPoint文档。

创建简单的PowerPoint文档

//新建一个PowerPoint文档（默认包含一页空白幻灯片）
Presentation ppt = new Presentation();

//设置幻灯片大小和方向
ppt.SlideSize.Type = SlideSizeType.Screen16x9;
ppt.SlideSize.Orientation = SlideOrienation.Landscape;

//为幻灯片设置背景图片
string ImageFile = "background.jpg";
RectangleF rect = new RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height);
ppt.Slides[0].SlideBackground.Fill.FillType = FillFormatType.Picture;
IEmbedImage image = ppt.Slides[0].Shapes.AppendEmbedImage(ShapeType.Rectangle, ImageFile, rect);
ppt.Slides[0].SlideBackground.Fill.PictureFill.Picture.EmbedImage = image as IImageData;

//添加一个图形（shape)到第一张幻灯片
IAutoShape textboxShape = ppt.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 600, 100));
textboxShape.ShapeStyle.LineColor.Color = Color.Transparent;
textboxShape.Fill.FillType = Spire.Presentation.Drawing.FillFormatType.None;

//清除图形上的段落（默认有一个空白段落）
textboxShape.TextFrame.Paragraphs.Clear();

//在图形上添加段落及内容
textboxShape.TextFrame.Paragraphs.Append(new TextParagraph());        
textboxShape.TextFrame.Paragraphs[0].TextRanges.Append(new TextRange("Spire.Presentation for .NET"));
textboxShape.TextFrame.Paragraphs[0].SpaceAfter = 50f;

//添加第二段及内容
textboxShape.TextFrame.Paragraphs.Append(new TextParagraph());
string text = "一款专业的 PowerPoint 组件，使用该组件，开发者可以在 .NET 平台上对 PowerPoint 文档进行生成、读取、写入、修改、"
             + "转换和打印等操作。 作为一个独立的控件，Spire.Presentation for .NET 的运行无需要安装 Microsoft PowerPoint。";
textboxShape.TextFrame.Paragraphs[1].TextRanges.Append(new TextRange(text));

//设置段落中文字的字体、大小、颜色及段落的对齐方式、段首缩进距离
foreach (TextParagraph para in textboxShape.TextFrame.Paragraphs)
{
    para.TextRanges[0].LatinFont = new TextFont("Arial Rounded MT Bold");
    para.TextRanges[0].FontHeight = 13f;
    para.TextRanges[0].Fill.FillType = FillFormatType.Solid;
    para.TextRanges[0].Fill.SolidColor.Color = Color.Black;
    para.Alignment = TextAlignmentType.Left;
    para.Indent = 35;
}

//保存文档
ppt.SaveToFile("创建PowerPoint.pptx", FileFormat.Pptx2013)

设置文档属性

//新建一个文档
Presentation ppt= new Presentation();

//通过DocumentProperty设置文档属性
ppt.DocumentProperty.Application = "Spire.Presentation";
ppt.DocumentProperty.Author = "//www.e-iceblue.com/";
ppt.DocumentProperty.Company = "冰蓝科技有限公司";
ppt.DocumentProperty.Keywords = "C#,PowerPoint文档属性";
ppt.DocumentProperty.Comments = "无";
ppt.DocumentProperty.Category = "PowerPoint教程";
ppt.DocumentProperty.Title = "如何为PowerPoint文档添加属性";
ppt.DocumentProperty.Subject = "Add document properties in C#";
ppt.DocumentProperty.Manager = "Gary";

//保存文档
ppt.SaveToFile("设置文档属性.pptx", FileFormat.Pptx2013);