Unortunately, I am forced to use windows. So, I installed
Cygwin to use some Linux commands.
The following command works fine. It replaces an image with its trimmed version.
"C:\Program Files\Cygwin\bin\convert" image1.png -trim image1.png
However, how can I run this command on all image file?
"C:\Program Files\Cygwin\bin\convert" * -trim ????