Hello, I created a website that people with Tumblr blogs may find useful. It's a simple online website that allows you to easily add ( or automatically add ) watermarks to all of your uploads. I created it so that I did not have to manually do this to all my uploads. It's also free.
I would love some feedback/feature requests to help improve it.
Check it out: https://blogwatermarker.com
It may save you time if you are a Tumblr user.