HDRpad is a photo editing software for High Dynamic Range imaging ( HDRi ), is a valid alternative to HDR software based on tone mapping algorithms.

HDRpad lets you automatically blend several differently exposed photos into a new one with more visual details, as you can see in the High Dynamic Range ( HDR ) photo synthesized from those photos.

Using HDRpad you can easily blend different exposures photographs to produce a new photo that has property of High Dynamic Range imaging HDRi. This HDR software is based on exposure fusion method. In common HDR photo editing software, photos are first processed to produce a photo with a greater range of luminances and then tone mapping is applied to the new synthetic photo to reduce overall contrast to facilitate display of HDR images on devices with lower dynamic range.

The license of this software is Freeware, you can free download and free use this digital photo software.