Spire. Presentation for. NET

Presentation ppt= new Presentation();
ppt.LoadFromFile(inputFile);
VideoCollection videos = ppt.Videos;
foreach (ISlide sld in ppt.Slides)
{
    foreach (Spire.Presentation.Shape sp in sld.Shapes)
    {
        if (sp is IVideo)
        {
IVideo video = sp as IVideo;
byte[] bts = File.ReadAllBytes("C:/test.mp4");
VideoData videoData = videos.Append(bts);
video.EmbeddedVideoData = videoData;
        }
    }
}
ppt.SaveToFile(outputFile, FileFormat.Pptx2013);

String zipPath= "C:/test.zip";
Presentation ppt = new Presentation();
byte[] data = File.ReadAllBytes(zipPath);
Rectangle rec = new Rectangle(80, 60, 100, 100);
//The first parameter needs to be passed the complete file name 
IOleObject ole = ppt.Slides[0].Shapes.AppendOleObject("test.zip", data, rec);
ole.ProgId = "Package";
Image image = Image.FromFile(@"E:\demoProducts\Image\logo.png");
IImageData oleImage = ppt.Images.Append(image);
ole.SubstituteImagePictureFillFormat.Picture.EmbedImage = oleImage;
ppt.SaveToFile(@"result.pptx", Spire.Presentation.FileFormat.Pptx2013);

//Add digital signature
X509Certificate2 x509 = new X509Certificate2(inputPfx, "e-iceblue");
ppt.AddDigitalSignature(x509, "111", DateTime.Now);
//Remove digital signature
if (ppt.IsDigitallySigned == true) 
{ 
ppt.RemoveAllDigitalSignatures(); 

Presentation ppt = new Presentation();
ppt.LoadFromFile(inputFile);
IChart chart = ppt.Slides[0].Shapes[0] as IChart;
ITrendlines trendline = chart.Series[0].TrendLines[0] as ITrendlines;
trendline.displayEquation = false;
trendline.displayRSquaredValue = false;
trendline.Name = "trendlineName";
trendline.Line.FillType = FillFormatType.Solid;
trendline.Line.SolidFillColor.Color = Color.Red;
ppt.SaveToFile(outputFile, FileFormat.Pptx2010);
ppt.Dispose();

ppt.Slides[0].SlideShowTransition.Type = TransitionType.Morph;

GroupShape groupShape = presentation.Slides[0].Shapes[0] as GroupShape;
presentation.Slides[0].Ungroup(groupShape);

Placeholder placeholder = presentation.Slides[1].Shapes[0].Placeholder;
IShape[] shapes = presentation.Slides[1].GetPlaceholderShapes(placeholder);
for (int i = 0; i < shapes.Length; i++)
{
        if (shapes[i] is IAutoShape)
        {
            IAutoShape autoShape = shapes[i] as IAutoShape;
            if (autoShape.TextFrame != null)
            {
                Console.WriteLine(autoShape.TextFrame.Text);
            }
        }
} 

ArrayList groupShapeList = new ArrayList();
groupShapeList.Add(shape1);
groupShapeList.Add(shape2);
groupShapeList.Add(shape3);
GroupShape groupshape = ppt.Slides[0].GroupShapes(groupShapeList);

Section sect01 = ppt.SectionList.Insert(0, "section1");
Section sect02 = ppt.SectionList.Append("section2");

ISlide slide01 = ppt.Slides.Append();
ISlide slide02 = ppt.Slides.Append();

Section section01 = ppt.SectionList.Add("section1", slide01);
Section section02 = ppt.SectionList.Insert(1, "section2");
Section section03 = ppt.SectionList.Append("section3");

//Add slides
ISlide slide03 = ppt.SectionList.InsertSlide(section02, 0, slide01);
ISlide slide04 = section02.Insert(1, slide02);
section02.AddRange(new ISlide[] { slide03, slide04 });

//Move slides 
ppt.SectionList.MoveSlide(section03, 0, slide03); 
section03.Move(1, slide04);

//Remove slides
ppt.SectionList.RemoveSlide(section03, 0);
section01.RemoveAt(0);
section02.RemoveRange(0, 3);
section03.Remove(slide04);

int index1 = ppt.SectionList.IndexOf(section01);
int index2 = section02.Index;

ppt.SectionList.RemoveAt(1);
ppt.SectionList.RemoveAll();

Presentation presentation = new Presentation();
presentation.LoadFromFile(pptfile);
ISlide slide = presentation.Slides[0];
//Add section 
presentation.SectionList.Add("section1", slide);
//Get section
Section section;
String name;
  for (int i = 0; i < presentation.SectionList.Count; i++)
    {
      section  = presentation.SectionList[i];
      name = section.Name;
         foreach (long id in section.SlideIdList)
          {
           }
     }

ISmartArt smartArt = presentation.Slides[0].Shapes[0] as ISmartArt;
int count =smartArt.Nodes.Count;
ISmartArtNode node;
  for (int i = 0; i < count; i++)
    {
    node = smartArt.Nodes[i];
    node.Line.FillType = FillFormatType.Solid;
    node.Line.SolidFillColor.Color = Color.Gray;
    node.Line.Width = 2;
    }

ISmartArt smartArt = presentation.Slides[0].Shapes[0] as ISmartArt;
int count =smartArt.Nodes.Count;
ISmartArtNode node;
  for (int i = 0; i < count; i++)
    {
    node = smartArt.Nodes[i];
    node.LinkLine.FillType = FillFormatType.Solid;
    node.LinkLine.SolidFillColor.Color = Color.Gray;
    node.LinkLine.Width = 2;
    node.LinkLine.DashStyle = LineDashStyleType.SystemDash;
    }

IAutoShape shape = ppt1.Slides[0].Shapes[0] as IAutoShape;
shape.TextFrame.RightToLeftColumns = true;

ppt.Slides[0].Shapes.AppendShape(ShapeType.Line, new PointF(10, 10), new PointF(20, 30));