How do I control the compression rate of mogrify?

Question

I want to do something like

mogrify -format jpg *.png

However, I want to encode the jpg at a higher quality than the default. Is there a way to do this?

Answer 1

mogrify -format jpg -quality 100 *.png

Here's the official documentation. Value for quality varies depending on the resulting format, for PNG it goes to 100.

http://www.imagemagick.org/script/command-line-options.php#quality

With any Linux command, you can enter

man [command]

To see the help page that list out the information and parameters available.