HDR tutorial: how to create HDR photos with free Qtpfsgui and GIMP In this HDR tutorial you’ll find out how to create HDR photos using Qtpfsgui and GIMP (you can use Photoshop as well). Both Qtpfsgui and GIMP are free, open source and available for Windows, Linux, and Mac OS X. With free Qtpfsgui you can get more impressive HDR photos than with paid HDR software competitors. Though Qtpfsgui interf