Orthographic will change the image raster size

I am doing the step of “Terrain Correction”. I want to export the result which have Orthographic projection like this.

My problem is that in the SNAP we can see a correct result like this :slight_smile:

But the export result will be :

Besides, the raster size of original image is 1050810718,but the raster size of export result wil be 1422513365.

You are applying a map projection so there will be extra zero value pixels. the raster will always be rectangular but the image may be rotated on that raster.

“the image may be rotated on that raster”Do you mean resampling?How to do that?
Thank you very much in advance.