I made an image of 16GB card which is now a 14.8 GB which is exact to the card memory , can we make image with file size used like it is currently using 6GB only.
I use the following procedure to make backup images.
This can be used to make minimal sized, full size or arbitrary sized images. The prompts for image size on initial backup; subsequent backups update the image.
I backup my 32GB cards to a 13GB image (which can be compressed to less than 5GB for archival).