GdPicture.NET为开发人员提供了编辑和处理TIFF文件的功能，对于TIFF文件，可以通过控件提供的API函数TiffSaveAsMultiPageFile保存单页的TIFF文件为多页的，然后再通过TiffAddToMultiPageFile函数来为多页TIFF文件添加页，具体的使用方法可以参考下面的详细代码：

GdPictureImaging oGdPictureImaging = new GdPictureImaging();

int ImageID = 0;

int TiffID = 0;

ImageID = oGdPictureImaging.CreateGdPictureImageFromFile("image1.tif");

oGdPictureImaging.TiffSaveAsMultiPageFile(ImageID, "multipage.tif", TiffCompression.TiffCompressionAUTO);

//At this step ImageID1 handles a reference to the multipage tiff stream.

TiffID = ImageID;

//adding a second page in the multipage stream from image2.tif

ImageID = oGdPictureImaging.CreateGdPictureImageFromFile("image2.tif");

oGdPictureImaging.TiffAddToMultiPageFile(TiffID, ImageID);

oGdPictureImaging.ReleaseGdPictureImage(ImageID);

oGdPictureImaging.ReleaseGdPictureImage(ImageID);

oGdPictureImaging.TiffCloseMultiPageFile(TiffID); //end the file

oGdPictureImaging.ReleaseGdPictureImage(TiffID); //releasing the input bitmap from the memory

 

注意上面的image1.tif在这里必须是单页的TIF文件，如果是多页的，那么就会造成TiffAddToMultiPageFile函数无法添加页。