This package only defines the user-level macro \blowUp, which can be used
to scale all pages of a document up or down. It is similar to the TeX
primitive \mag, but more accurate and user-friendly. \blowUp can be
useful for creating posters from a normal sized document and for many other
types of fine-tuning of a finished document (e.g., minor scaling changes and
position of the pages).
Home page: https://github.com/rolfn/blowup
Rolf Niepraschk, 2022-09-19