cateyr

I have several images (artwork) that are very small like 280 x 280 pixels. I would love to blow these up so that I can hang them up on the wall. When I do a print preview on the screen everything looks great but I think somehow when I print them (my husband has the printer in another country so can't actually try to print out yet..) I did download a photo enlarger called smilla...are there better options or tricks I can use to get quality print artwork? Thanks for your help!