Florida will begin to issue and accept a digital drivers license this month! It will be accepted as official ID by Florida authorities including police. Your success in other states will vary so keep your original with you…
There is a handful of other states that already have issued digital ID’s. I do not know if these ID’s are yet accepted at airports but I expect they will be.
However, please note that your home made pdf file is not official or the same and will probably not be accepted. I have used my homemade pdf copies in Asia without problem
If you received your covid shot at a florida pharmacy and have an apple iphone, you can go to the pharmacy website and download an official digital copy of your vaccination and insert it in your iphone digital wallet. I did that for my covid booster shot from Walmart. However, my first two covid shots were from Sumter County and they do not provide digital copies. But they will print out an “official” (but not so much official looking) paper copy of your vaccinations upon request
https://www.flhsmv.gov/floridasmartid/