Thanks for reaching out to us!
Although it is possible to remove watermarks with Ribbet, there isn’t any exact strategy for doing so and it will depend on the position and type of watermark. I’d suggest trying the Pro tab > Clone tool to clone nearby areas of the photo over the watermark.
Unfortunately Ribbet isn’t a specialised tool for watermark removal, but it does have a lot of relevant tools that can be used to achieve it.
Let me know if you have any other questions!
Regards – The Ribbet Team