ImageMagick -- How to tell if it is working?

[dynambee]

I have set up the ImageMagick module and uploaded ~1100 products to a dev site, along with ~2500 photos.

How do I know if the images were processed by ImageMagick or not? I ask because the version of IM offered by Cloudways is older than the version required by the module. In my opinion it should work as the biggest difference is a security fix that Cloudways have patched but different versions are still different versions.

So is there any way to know if the module is operating correctly and doing the image processing?

[Traumflug]

How do I know if the images were processed by ImageMagick or not?

Regenerating thumbnails processes them.

If you want to make sure they were actually processed by ImageMagick and not the simpler way, turn off IM first, regenerate thumbnails, note the exact size of a few images, then regenerate with IM on and compare with the previous sizes. JPEGs generated with different methods are always of slightly different sizes.