1. A method for text driven document sizing in a rendering device, comprising: automatically detecting a minimum text size of text contained in an original document; specifying a particular minimum text size based on a user input, wherein said particular minimum text size is achievable in a rendered document based on said original document; and utilizing said detected minimum text size and said particular minimum text size input by said user in order to automatically determine an image magnification ratio and at least one output document size required to achieve said particular minimum text size in said rendered document via said rendering device, wherein a text size achieved in said rendered document is as close as possible to said particular minimum text size if said particular minimum text size specified by said user is unachievable.