Open HandBrake → → select your HDR video (HEVC 10-bit is common).
Let's say you have Avengers.Endgame.4K.HDR.mkv (50GB). You want to watch it on an iPad Air 2 (SDR only). convert hdr to sdr handbrake
selected for standard SDR compatibility, as 8-bit is the typical SDR standard. Start Encode : Choose your destination folder and click Start Encode Advanced "Pro" Settings Open HandBrake → → select your HDR video
(under Colors or Filters depending on version): convert hdr to sdr handbrake