Multi-tiff output image.

Hi to all.

I´m working with TIFF images. I use GM to crop tiff images and saving as tiff images too.
When I crop the images that I obtain directly from the scanner there are no problem, the ouput tiff is a well formed tiff and with only one frame (no multi-tiff), but If I use before photoshop for applying several actions and then crop the images with GM the output image is a multi-tiff image. I have checked that the photoshop tiff have no layers.

If I open the output tiff with Xnview I can see the image is a multi-tiff (the first page is the image and the second page is like a thumbnail).attach #1373attach #1374

Please, can your help me with this...?? I need a simple tiff output image.

Thanks in advance.

I solved like this:

exif.Remove(ExifDictionary.Thumbnail);