How to add watermark to the cover in batches?

Now I have some audio files of my own, and I need to add a watermark to the cover, how do I add them in batches?

Pictures are added "as is". So the picture would already have to have the watermark.
Here is a thread about pictures that should be overlayed with something else - which is not possible:

Well, thank you for your reply.

Best off manipulating the covers in a graphics program, then embedding the resulting image using mp3tag. My favorite is FSViewer (freeware) that can batch process watermarks on many images (among many other capabilities).

I'm just curious: Why do you add a watermark to your covers? What would be the real live use for this?

1 Like