How to export a 2D picture from an adapted picture


I am creating adapted pictures to show my 3D model in the environnement from pictures I took myself.
My problem is when I want to export the 2D adapted picture, I have the grey background that stay on the side of the picture and I didn’t find an option to perfectly export the original size of the picture.

If someone have a tips, thank you in advance

Do you mean that you want to get rid of the SU background on the exported image so that it doesn’t block out parts of the photo you want to superimpose it on? If so, I suspect you would have to use an image editor.

Here is one the image I exported : the thing is I just want to export a picture without the grey side so I can have the same size as the original picture if I want to mask stuff in an image editor later