I have installed this plugin but after complete the installation this plugin how to use , i do not know . please give the solution . if you know any register/login very simple plugin then you can also tell me please .

https://www.ads-software.com/plugins/dx-login-register/

Hi,
I am using this plugin and it works great on full size pictures. But it does not apply to any other size. My website supports maximum 600 px wide image ( https://www.monkeygag.com ). So I have to add images which have maximum 600 px width. But this plugin is not applying to them. Please tell me how can I apply the watermark to other sizes as well except 150×150 thumbnails.

Thanks

https://www.ads-software.com/extend/plugins/dx-watermark/