更改Syncfusion DocIo中图像(WPicture)的格式。NetCore公司

Essential DocIO没有用于更改图像格式的直接API。自系统。图形命名空间在ASP中不可用。NET核心平台,您需要使用任何一种可选的图像处理库(如中所述) MSDN )更改图片的图像格式。

下面的示例代码使用CoreCompat helper库更改图像格式:

   WPicture picture = item as WPicture;
  //Load the DocIO WPicture image bytes into CoreCompat Image instance.
  Image image = Image.FromStream(new MemoryStream(picture.ImageBytes));
  //Check image format, if format is other than png then convert the image as png format.
  if (!image.RawFormat.Equals(ImageFormat.Png))
  {
      MemoryStream imageStream = new MemoryStream();
      image.Save(imageStream, ImageFormat.Png);
      //Load the png format image into DocIO WPicture instance.
      picture.LoadImage(imageStream);
      imageStream.Dispose();
   }
   //Resize the picture width and height.
   picture.Width = 400;
   picture.Height = 400;