Hello,

I would like to know if it's possible to add a watermark to the images uploaded in any topic/comment.

I've located an option in admincp to add watermarks. Screenshot attached.

I usually use the control+v to paste screenshots or the upload imagine function in every topic. 

Will this option add the watermark to both the uploads and screenshots? Will the watermark be added to old images or the new ones alone?

Thanks a lot.

 

That setting is for the screenshots on the downloads application, and is unrelated in any way to uploading in posts. There is no way to watermark post uploads at present