Spire.Presentation 5.8.1已发布。该版本支持添加节、设置SmartArt节点轮廓线条样式和节点间的连接线条样式，并修复了将PPT转为PDF时出现的问题。新功能及问题修复详情如下。

新功能:

• 支持添加节

Presentation presentation = new Presentation();
presentation.LoadFromFile(pptfile);
ISlide slide = presentation.Slides[0];
//添加节
presentation.SectionList.Add("section1", slide);
//获取节
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)
          {
           }
     }

• 支持设置SmartArt节点轮廓线条样式

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;
    }

• 支持设置SmartArt节点之间的连接线条样式

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;
    }

问题修复:

• 修复了转换PPT到PDF内容后部分丢失的问题

https://www.e-iceblue.cn/Downloads/Spire-Presentation-NET.html