toGainMapHDR, which convert png, tiff etc. HDR file to Adaptive HDR (gain map heic file) / ISO HDR (PQ or HLG curve image). The program will read a image as both SDR and HDR image, then calculate ...

We tested ereaders from Kobo, Amazon, Boox and more to see which one is the best overall, along with a budget pick and the best one with page-turn buttons.