How to shrink a disk image?

Question

macOS

Good afternoon!
I have an *.img fedora disk image. Image size 4.02 GB. Disk Utility shows that the free space in this image is 700 MB.

I want to write this image to a 4GB flash drive. How can I reduce the size of this image using free space on MacOS?

Answer 1

As an option, you can overtake it in DMG and then roll it out to the media. When "rolling out" from DMG, the place will be occupied exactly as much as there is information.
For example, I have an image of the installed system (Debian 6). The image is expandable and has a size of 500 GB, however, I perfectly roll it out on any flash drive from 2 GB (the installed system takes 1.8 GB)