How to watermark a raw photo?

Question

Watermark

Someone faced the problem of imposing a watermark - watermarka on a photo in raw format? There are many photos saved in dng. I can not find an application that would be similar to snapseed but would support editing and saving photos in raw format. Of particular interest is the watermark overlay function. Lightroom does not apply.

Answer 1

this one isn't?

Answer 2

It only reads raw format and writes to jpeg. It is necessary for me, that also wrote down in raw.