How it works
Text or image marks
A text mark takes your words, a size and a colour; an image mark takes a picture of your own, with its width set as a share of the photo. Text size is set as if the photo's long side were 3072 px, so the mark keeps the same look on small and large photos.
Place it in one of nine spots, at a random spot, or tile it diagonally across the whole photo. Margin sets the distance from the edges as a percentage.
Opacity and blend
Opacity and blend mode (normal, multiply, screen, overlay) apply to the whole mark layer at once, so overlapping tiles do not darken each other. The download is made at the photo's original size, as PNG or JPEG.
