This plugin hasnt been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
my jpgs are around 7mb, being compressed to 200kb by wordpress.
using this plugin I still find my pictures are still compressed to about 2mb by wordpress.
So I cannot say this plugin works properly unfortunately.
Please let me know if I am using the plugin wrong
I normally don't rate plugins but felt it was necessary to warn others about wasting time and potentially encountering problems with this one. It sounds simple enough and is supposed to be very light weight. That may be true but the core function of this plugin is to prevent WordPress from applying the standard 10% compression to uploaded jpeg files. That not only didn't happen but it actually increased the compression rate to 20%.
I would normally uninstall and leave it at that but I submitted a detailed ticket (with examples) and asked if there was anything that could be done. A week later and not even an acknowledgement.
The only reason I rated it 2 stars instead of just 1 is because it appears it works for some people.