Insurance on more than one occasion I've found before an image of small, And enlarge when the loss of quality is very notable and often unrecognizable.
BenVista PhotoZoom is a program created to provide a set of tools with which the user can enlarge any kind of Images with little loss of quality, for it makes great use of functionality that give the user an image with larger dimensions, and a little distorted.
A spectacular tool that everyone should have on your computer. Link
