I'm interested in painting at a slightly lower res so my computer can more easily handle the tools and canvas (say, in the 2000-3000 pixel range), and then resizing the image once done so that I can use it to print (to something in the 5000-6000 range). My understanding is this won't really work in a program like Artrage, as it's not designed to resize a finished painting without making artifacts, pixelization, etc.
I've not tried things like Perfect Resize 7 or Genuine Fractals 6, which I've read reviews for and which sound very promising, nor do I have PS 5.1 to try its resizing tool, which I've also read is pretty good. Has anyone done something like this with an Artrage painting? Clearly professionals do it when printing photgraphs, but I dont know if people do it with digital paintings. Before I go and buy a new piece of software, like PR7 or GF6, I was hoping to hear from others and see if this works.
It seems like a really good way to work at a reasonable scale that's not too taxing, and yet also be able to have things at the right scale for print if I want them to be.