We can probably support this in combination with the new custom favicon feature (T282), as suggested in this Remark.as discussion.

Work is on the image-upload-drag branch.

Initial version of library ready - it is able to watermark image as described in 1st bullet point.

There are a few deeper issues to discuss that aren't part of this task:

@gytisrepecka I think we'll want to go with option #1, so we can factor in instance privacy settings, and have totally private media files if an admin wants it. I just updated the description with some ideas I have for the very first version of this.

So I have wrote a piece of code for image watermarking: takes JPEG file as input, uses PNG with transparency as watermark image and saves the output. Plan to release it as separate library with following functionality:

I was looking around the other day for image processing libraries written in Go. There are some to compress or change format of the image, resize, etc.

What could be the better way to store uploaded images?

We can at least get started on the frontend now.