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Install-Package FreeSpire.Presentation -Version 7.8从整个演示文稿中提取图像
4.遍历集合,调用ImageCollection[int].Image.Save()方法将集合中的图片保存到图片文件中。
using Spire.Presentation;
using Spire.Presentation.Collections;
using System.Drawing;
// 堆代码 duidaima.com
namespace ExtractImagesFromPresentation
{
internal class Program
{
static void Main(string[] args)
{
//初始化Presentation类的实例
Presentation ppt = new Presentation();
//加载PowerPoint演示文稿
ppt.LoadFromFile("示例文档.pptx");
//获取演示文稿的图像集
ImageCollection imageCollection = ppt.Images;
//遍历集合中的图像
for (int i = 0; i < imageCollection.Count; i++)
{
//提取图像
imageCollection[i].Image.Save(string.Format("Presentation\\图片{0}.png", i));
}
ppt.Dispose();
}
}
}
VB.NETImports Spire.Presentation
Imports Spire.Presentation.Collections
Namespace ExtractImagesFromPresentation
Friend Class Program
Private Shared Sub Main(ByVal args As String())
'初始化Presentation类的实例
Dim ppt As Presentation = New Presentation()
'加载PowerPoint演示文稿
ppt.LoadFromFile("示例文档.pptx")
'获取演示文稿的图像集
Dim imageCollection As ImageCollection = ppt.Images
'遍历集合中的图像
For i As Integer = 0 To imageCollection.Count - 1
'提取图像
imageCollection(i).Image.Save(String.Format("Presentation\图片{0}.png", i))
Next
ppt.Dispose()
End Sub
End Class
End Namespace

using Spire.Presentation;
namespace ExtractImagesFromSlide
{
internal class Program
{
static void Main(string[] args)
{
//初始化 Presentation 类的一个实例
Presentation ppt = new Presentation();
//加载 PowerPoint 演示文稿
ppt.LoadFromFile("示例文档.pptx");
//获取指定幻灯片
ISlide slide = ppt.Slides[1];
int i = 0;
//遍历指定幻灯片上的所有形状
foreach (IShape s in slide.Shapes)
{
//检查形状是否为SlidePicture类型
if (s is SlidePicture)
{
//提取图像
SlidePicture ps = s as SlidePicture;
ps.PictureFill.Picture.EmbedImage.Image.Save(string.Format(@"D:\.NET\提取图片\bin\Debug\Slide\图像{0}.png", i));
i++;
}
//检查形状是否为 PictureShape 类型
if (s is PictureShape)
{
//提取图像
PictureShape ps = s as PictureShape;
ps.EmbedImage.Image.Save(string.Format(@"D:\.NET\提取图片\bin\Debug\Slide\图像{0}.png", i));
i++;
}
}
}
}
}
VB.NETImports Spire.Presentation
Namespace ExtractImagesFromSlide
Friend Class Program
Private Shared Sub Main(ByVal args As String())
'初始化 Presentation 类的一个实例
Dim ppt As Presentation = New Presentation()
'加载 PowerPoint 演示文稿
ppt.LoadFromFile("示例文档.pptx")
'获取指定幻灯片
Dim slide As ISlide = ppt.Slides(1)
Dim i = 0
'遍历指定幻灯片上的所有形状
For Each s As IShape In slide.Shapes
'检查形状是否为SlidePicture类型
If TypeOf s Is SlidePicture Then
'提取图像
Dim ps As SlidePicture = TryCast(s, SlidePicture)
ps.PictureFill.Picture.EmbedImage.Image.Save(String.Format("D:\.NET\提取图片\bin\Debug\Slide\图像{0}.png", i))
i += 1
End If
'检查形状是否为 PictureShape 类型
If TypeOf s Is PictureShape Then
'提取图像
Dim ps As PictureShape = TryCast(s, PictureShape)
ps.EmbedImage.Image.Save(String.Format("D:\.NET\提取图片\bin\Debug\Slide\图像{0}.png", i))
i += 1
End If
Next
End Sub
End Class
End Namespace
效果图