From the page... [...] because I'm rendering actual JPGs server-side so that the prints will be identical to the previews. I could probably do it much fast

From the page... [...] because I'm rendering actual JPGs server-side so that the prints will be identical to the previews. I could probably do it much faster if I did it all client-side with SVGs, but I went with what I already knew. Maybe v2.0 will be more awesome.