Is a digital IDP (International Drivers Permit) acceptable in Japan?

Hi everyone, looking for some advice please. I’m currently travelling in Japan with a friend and have been a bit slow on my planning and long story short now that we’re here and looking at public transport options between cities and hotels, I’m thinking it’d be way more convenient to hire a car and drive than use public transport (for Osaka, Kyoto, Kobe & Hiroshima areas). I have a full UK driver’s licence but have just read that I would need an IDP to go with my licence. I’m obviously not in the UK so can’t do the Paypoint easy option but I’ve found a company online which offers a digital IDP for $60USD and a turnaround within 24hrs. My question is - will a digital version of the IDP be acceptable (along with my physical driver’s licence), or will they only accept a paper IDP? I’d be looking to pick up a rental car from Osaka airport if that’s helpful info.

TIA!