Itextsharp下根据Echarts图像生成pdf

/// <summary>
/// 得到这一系列Image的Url
/// </summary>
/// <param name="ID">相同部分</param>
/// <param name="count">共有几张</param>
/// <returns></returns>
public List<string> GetImageString(string ID, int count)
{
List<string> ImageStringList = new List<string>();

for (int i = 0; i < count; i++)
{
ImageStringList.Add(ID + count.ToString());
}
return ImageStringList;
}