Download Hugin, to create panoramic images
Panorama Tools is a collection of freeware applications and libraries originally written by the german physics and mathematics professor Helmut Dersch.
It provides a framework for re-projecting and blending multiple source images into immersive panoramics of many types. Hugin is an opensource graphical user interface (GUI) for Panorama tools.
Among the Hugin workflow options: it is possible to correct exposure, Vignetting and White balance between photos; generate HDR or exposure blended output from bracketed photos; or use 16bit and HDR input data natively.